How To Use Polymerization In A Sentence
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Although it is established that TMR-actin alone is polymerization incompetent, the impact of its copolymerization with unlabeled actin on filament structure and dynamics has not been tested yet.
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Waterborne acrylic pressure - sensitive adhesives ( PSAs ) with low peel strength were prepared by the semi - continuous emulsion polymerization.
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We used a low dose of the drug to prevent catastrophic depolymerization of actin and major morphological changes, which both would have biased our analysis.
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Melt blending of HDPE and LLDPE, and peroxide initiated grafting copolymerization of vinyl trimethoxy silane(A171) onto HDPE/LLDPE blends were simultaneously studied in a twin screw extruder.
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Batch and semi - continuous emulsion copolymerizations of Vinyl Acetate ( VA ) - Metyl Acrylate ( MA ) were carried out.
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It is produced through a free radical polymerization reaction of styrene monomers.
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Activator solid support for metallocene catalysts in the polymerization of olefins, a process for preparing such a support, and the corresponding catalytic system and polymerization process
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Although ring opening olefin metathesis polymerization,
Robert H. Grubbs - Autobiography
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The development of leatheriness showed a similar lack of polyuronide depolymerization, with no detectable depolymerization relative to pre-ripening and a greater arrest of depolymerization than in mealy fruit.
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Crosslinked Copplymer gels prepared by copolymerization of hexadecyl acrylate ( HA ) and acrylic acid ( AA ).
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A strategic plan for secure and sustained energy would have many elements — shifting imports to more stable, friendlier countries, exploiting more domestic resources, pursuing alternative energy sources, and rapidly promoting the use of breakthrough technologies such as the thermal depolymerization process (that can extract crude oil from refuse ranging from old tires to agricultural waste) — but it will require leadership to set goals and coordinate action.
Gasoline Hysteria, Arnold Kling | EconLog | Library of Economics and Liberty
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The researchers used a technique called coordination copolymerization to produce the new material.
Science Blog - Science news straight from the source
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No less important is his later research which led to the synthesis of completely new elastomers, in two different ways: by polymerization of butadiene into cis-1,4 polymers with a very high degree of steric purity and by copolymerization of ethylene with other a-olefins
Giulio Natta - Biography
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In the “Thai Polyester Fiber” case we can analyze the multitude of problems encountered by two French firms involved in constructing and installing a $50-million polyester polymerization and filature plant in Thailand, in a joint venture with a major local business group.
Strategic Management in Developing Countries Case Studies
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The invention discloses a tacticity regulator used for propylene polymerization and an application of the regulator.
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The system that we study here is similar to that used in the initiation of vinyl free-radical polymerization.
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In the case of D. discoideum, where the cell shape is entirely controlled by actin microfilaments and actin-binding proteins, actin depolymerization eliminates pseudopodia and filopodia.
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She writes: "Mild-acid hydrolytic de-polymerization of carageenan affords poligeenan, a mixture of lower molecular weight polysaccharides and oligosaccharide products.
Red Seaweed as HPV/cervical cancer preventative
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Reforming represents the total effect of numerous reactions such as cracking, polymerization, dehydrogenation, and isomerization taking place simultaneously (Figure 9).
Cracking
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These materials are based on the polymerization reaction of a diol with a diisocyanate.
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Ziegler was researching organometallic compounds (carbon compounds that contain metals) and their effects on polymerization reaction.
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The dynamics of actin polymerization and depolymerization in the absence of crosslinkers has been mathematically modeled by others, and was theoretically shown to yield a steady-state exponential length distribution.
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For example, polystyrene is the material that results from the polymerization of styrene monomers.
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A recent variation on the latter assumes disulfide reshuffling as the mechanism of polymerization.
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After spending nearly two years doing research in kinetics of polymerizations, I realized that I wanted to have time to study various basic subjects in order to broaden my background and to explore other research areas.
Mario Molina - Autobiography
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Uses for Hydrazine are: Rocket fuel, agricultural chemicals (maleic hydrazide), drugs (antibacterial and antihypertension), polymerization catalyst, plating metals on glass and plastics, solder fluxes, photographic developers, diving equipment.
A Large Collection of Incendiary Information (Part II)
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For example, tropomyosin, a coiled-coil protein that binds along the sides of actin filaments, inhibits the rate of depolymerization from the pointed end, without affecting elongation.
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During fruit softening, pectins and hemicelluloses typically undergo solubilization and depolymerization that are thought to contribute to cell wall loosening and disintegration.
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I'm of the opinion that thermal depolymerization is going to be a great way of eliminating waste-disposal problems at a profit, but it's not going to make any great difference in our energy economy.
The Speculist: Nano Energy and "the Peak"
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Peroxidase is probably implicated in lignin and/or suberin formation during the polymerization of monoglinols or aromatic monomers.
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They are produced by the polymerization reaction of phenol and formaldehyde.
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The polymerization method allowed the obtention of transparent samples without irregularities or stresses caused by thermal shock.
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Microcapsules of pendimethalin with a urea - formaldehyde resin wall were prepared by anon - situ condensation polymerization aqueous medium.
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Polymerization is another type of chemical reaction employed in organic synthesis to couple small monomeric units into a much larger chain.
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Reforming represents the total effect of numerous reactions such as cracking, polymerization, dehydrogenation, and isomerization taking place simultaneously (Figure 9).
Cracking
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The solvent serves as a reaction, polymerization or oligomerization diluent.
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Virtually all of the world's butyl rubber production is made by a precipitation (slurry) polymerization process in which iosbutylene and a minor amount of isoprene are copolymerized in a methyl chloride diluent at temperatures of -100 to - 90ºC using aluminum chloride as catalysts (1).
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This indicates that TMR-actin does not form oligomers under polymerization conditions.
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Regarding Changing World tech and its thermal depolymerization technology, the underlying technology looks sound.
I just want to say one word to you -- just one word (Jack Bog's Blog)
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The new structure is a bit surprising and shows how the coordination copolymerization method has real potential for new materials discovery," Matzger said.
Science Blog - Science news straight from the source
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In its simplest form, this is a one-step polymerization reaction involving glycosyl transfer by inversion of configuration at the anomeric carbon.
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The hydroperoxidation product (EPHP) was used to initiate olefine monomers, such as styrene, etc. for grafting copolymerization and examination of toughening effect of the grafted EP in the blend.
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I personally think that thermal depolymerization is better but, time will tell.
Thinking About America
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Peptide bond formation is a condensation reaction leading to the polymerization of amino acids into peptides and proteins.
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With large amounts of monomer, bulk polymerization often takes very turbulent and even explosive form.
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Both malleable and compressible, easy to cut and drip-free, it is heated by electromagnetic induction to bring its polymerization time to 90 minutes.
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The firm explained that hydrolysis, oxidation, polymerization, isomerization and cyclization are common chemical reactions in frying oil that produce both volatile and nonvolatile compounds.
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Pectins and hemicelluloses, two of the major cell wall components, undergo solubilization and depolymerization.
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Further, for the case of acrylamide, the polymerization was roughly twice as fast under nitrogen as in air.
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Polyvinyl chloride is a macromolecule that results from the free-radical polymerization of vinyl chloride.
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We show in particular that untwisting a DNA molecule enables a fast start of RecA polymerization, even if the applied external force is far below the 65 pN overstretching threshold.
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New metallocene catalysts are used in the preparation of new plastics, including new methods for the polymerization of alkenes such as ethylene and propylene.
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The coating composition is the reaction product of a water-dispersible cross-linking agent and a water-based copolymer prepared by free-radical polymerization.
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Siloxanes are prepolymers - the result of partial polymerization of silanes - in which the molecules are beginning to link, but only in sets of two or three, not yet in full polymeric chains.
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In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene.
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An example of this type of adhesive is polyimide that is formed by the polymerization reaction of an aromatic amine with an aromatic anhydride.
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In cells recovering from the inhibition of actin polymerization by latrunculin A, the assembly of actin filaments is dissociated from its linkage to membrane protrusion.
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Results indicate that the phenothiazine has strong capability to inhibit the radical polymerization of AM and has a little effect on the molecular weight of the products.
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She writes: "Mild-acid hydrolytic de-polymerization of carageenan affords poligeenan, a mixture of lower molecular weight polysaccharides and oligosaccharide products.
Red Seaweed as HPV/cervical cancer preventative
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We presented evidence implicating actin polymerization and not actomyosin activity as the dominant mechanism actuating the stiffening response.
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The covalent linkage of the chromophore by copolymerization with MMA does not significantly alter its photophysics.
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Despite the growing use of tetramethylrhodamine maleimide / acetamide modified actins, their polymerization properties have not been described yet.
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Polydicyclopentadiene (PDCPD) is a novel engineering material synthesized by reaction injection molding (RIM) method and such reaction mechanism is ring-opening metathesis polymerization.
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In free radical polymerization, monomers can add to each other without formation of a small molecule.
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A new thermal depolymerization plant in Carthage, MO that converts turkey waste into oil products smells really BAD.
Archive 2006-01-29
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Melt blending of HDPE and LLDPE, and peroxide initiated grafting copolymerization of vinyl trimethoxy silane(A171) onto HDPE/LLDPE blends were simultaneously studied in a twin screw extruder.
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Using thermal depolymerization to create a carbon neutral cracking cycle of growing feedstock and rendering it into gasoline will be naturally subsidized by rising oil prices.
Wired Top Stories
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His brilliant studies of the reaction of nitrogen oxides with orefins and aromatics, the clarification of furoxanes as well as the classical experiments with fulminic acid and its polymerization may be chosen as examples.
Heinrich Wieland - Biography
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Other activities of specialized kinesin-like proteins, such as microtubule depolymerization by proteins of the kinesin 13 family, also require ATP hydrolysis
PLoS ONE Alerts: New Articles
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DPPH·and two chemical irritant light reactions were used for comparing the radical scavenging capacity of grape seed procyanidin fractions with different degree of polymerization(DP).
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If you go the thermal depolymerization route, you could convert it into hydrocarbon fuel or monomer feedstock.
The Speculist: Things are About to get Interesting
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Castoldi M, Popov AV (2003) Purification of brain tubulin through two cycles of polymerization-depolymerization in a high-molarity buffer.
PLoS ONE Alerts: New Articles
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Consequently, in each roundtrip from the lungs to the tissues the vast majority of cells escape the narrow vessels of the microcirculation before any significant polymerization has begun.
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Prof. Natta extended the research conducted by Ziegler on organometallic catalysts to the stereospecific polymerization, thus discovering new classes of polymers with a sterically ordered structure, viz. isotactic, syndiotactic and di-isotactic polymers and linear non branched olefinic polymers and copolymers with an atactic (or sterically nonordered) structure.
Giulio Natta - Biography
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The research development in catalysts for Syndiotactic polymerization of styrene is re - viewed.
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Industrially, benzene is used in the manufacture of nylon, phenol, styrene (and by polymerization polystyrene), and cyclohexane.
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I became interested in dinitrogen chemistry around 1980, and polymer chemistry (first ring-opening metathesis polymerization and later olefin and acetylene polymerization) a few years after that.
Richard R. Schrock - Autobiography
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Prof. Natta extended the research conducted by Ziegler on organometallic catalysts to the stereospecific polymerization, thus discovering new classes of polymers with a sterically ordered structure, viz. isotactic, syndiotactic and di-isotactic polymers and linear non branched olefinic polymers and copolymers with an atactic (or sterically nonordered) structure.
Giulio Natta - Biography
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Industrially, benzene is used in the manufacture of nylon, phenol, styrene (and by polymerization polystyrene), and cyclohexane.
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Macrodiols with different thermal characteristics were prepared using ring-opening polymerization of cyclic diesters or lactones with a low molecular weight diol as an initiator.
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This paper relates a lab research job of preparation of PSNAMA terpolymer by terpolymerization of styrene cationic nitrogen compound with acrylamide and acrylic acid.
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“Thermal copolymerization of amino acids to a product resembling protein.”
Life
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These materials are based on the polymerization reaction of a diol with a diisocyanate.
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After a few hours, polymerization turned the micronecklace into a cohesive microwire.
PhysOrg.com - latest science and technology news stories
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An alkyldiamine having excellent polymerization reactivity, a polyimide comprising it as a constituting element, and a liquid crystal alignment film excellent in uniformity of liquid crystal alignment, are presented.
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Polymerization at high pressures or in the presence of a catalyst can produce polythene.
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Macrodiols with different thermal characteristics were prepared using ring-opening polymerization of cyclic diesters or lactones with a low molecular weight diol as an initiator.
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The nucleation mechanisms and colloid stability are the key aspects of emulsifier - free emulsion polymerization.
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The effect of residence time on mechanism of chain termination of An radical polymerization was discussed.
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Many models are based on the fact that the actin polymerization is a major contributor to the protrusive force, which leads to the extension of the lamellipodia of crawling cells on a hard substrate.
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In the free radical polymerization of ethylene to form polyethylene, a small amount of a peroxide is added to a large volume of ethylene.
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Furthermore, graft polymers can be produced by the use of high molecular radical polymerization initiators from which an alkoxyamine group suspends.
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At low concentrations, cytochalasin D is reported to inhibit actin polymerization.
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Consistent with this premise, the corresponding loop in alpha-tubulin looses flexibility upon polymerization.
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The main composition of the emulsion polymerization is monomer, water, and initiator.
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Macrodiols with different thermal characteristics were prepared using ring-opening polymerization of cyclic diesters or lactones with a low molecular weight diol as an initiator.
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And what about the residuals of emerging processes like gasification, enzymatic hydrolysis, depolymerization, biodiesel production, etc?
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The best indicator of titration in nonaqueous solvent for determinating the polymerization of propenoic acid and EPDM were selected by experiments.
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The polymerization of an ester can produce a polyester, an artificial fiber that is used as a cotton substitute.
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Does actin polymerization restart from nucleation sites that are retained at the membrane during the depolymerization of actin, or can repolymerization begin anywhere in the cell and be subsequently coupled to membrane protrusion?
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Among other uses, the activity coefficients have successfully rationalized the copolymerization of sickle hemoglobin in mixtures with nonpolymerizing agents.
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Developments in the bimodal polyethylene process, cyclopentadienyl metal catalysts and gas phase ethylene polymerization with the liquid condensation technology are reviewed.
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Addition polymerization reactions use free radical monomers to produce polymers.
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Instead of using a chemical reaction that would proceed once a single photon was absorbed, they relied on molecules that had to absorb two photons at the laser's wavelength before reacting, a technique called multiphoton absorption polymerization, or MAP.
Ars Technica
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We observed that the speed of rearward movement and the speed of edge protrusion do not sum to a constant value, implying that actin polymerization at the leading edge is not constant through time.
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Prof. Natta extended the research conducted by Ziegler on organometallic catalysts to the stereospecific polymerization, thus discovering new classes of polymers with a sterically ordered structure, viz. isotactic, syndiotactic and di-isotactic polymers and linear non branched olefinic polymers and copolymers with an atactic (or sterically nonordered) structure.
Giulio Natta - Biography
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An example of this type of adhesive is polyimide that is formed by the polymerization reaction of an aromatic amine with an aromatic anhydride.
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Benzoin and its derivatives are used as intermediates for the synthesis of organic compounds and as catalysts in photopolymerization.
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The best indicator of titration in nonaqueous solvent for determinating the polymerization of propenoic acid and EPDM were selected by experiments.
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Emission spectra of TMR-actin-before and after its copolymerization with unlabeled actin-show ~ 50% fluorescence increase upon actin polymerization.
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Organolithium-initiated polymerization of isoprene was discovered in 1957.
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When cytochalasin D, a small molecule which permeates cells and inhibits cytoskeleton polymerization, was applied to one of the identified proteins, it repaired cilium formation in cells carrying mutations.
PhysOrg.com - latest science and technology news stories
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Polymerization of ethene gives polythene (polyethylene).
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Besides increasing the catalyst activity, the pre-polymerization can not only raise the bulk density and isotacticity of the PP product, but also significantly diminish the cracking of the PP powders.
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The acrylic-modified waterborne alkyd is a hybrid resin prepared by the polymerization of at least one ethylenically unsaturated monomer in the presence of a waterborne alkyd having at least one pendant sulfonate functionality.
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The results of copolymerization are shown in Table 1, with the degree of substitution of the MG unit in the copolymer found to be 12.4 mol%.
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This is a serious problem because experiments on template-directed synthesis using poly© and the imidazolides of G suggest that the polymerization of the D-enantiomer is often strongly inhibited by the
Good Math, Bad Math, and David Berlinkski - The Panda's Thumb
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During polymerization, propene monomer units insert between hafnium and the existing polypropylene chain, Sita explains.
Engineering News: Latest News
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Polymerization is thought to generate protrusive forces that push forth a lamellipodium and begin the cell motility cycle.
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Lebec were to fly in from Bangkok, where they were working together on the construction and installation of the Thai Polyester Fiber Plant TPF, a 1-billion-baht1 polyester polymerization and filature factory.2 TPF was the joint venture between CST and the Yipsoon Group, a family-owned textile conglomerate based in Thailand, which owned or operated more than 50% of the Thai textile industry.
Strategic Management in Developing Countries Case Studies
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The crowding could lead to polymerization or cross-linking events between macromolecules that might account for a change in rheology of the cytoplasm other than that caused by actin polymerization.
