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Дисертації з теми "Styrene monomers"

Автор: Grafiati
Опубліковано: 3 червня 2025
Оновлено: 31 липня 2025

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1

Ma, Yinghua. "Living cationic polymerization of styrene monomers." Thesis, Aston University, 2000. http://publications.aston.ac.uk/9636/.

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This thesis describes an experimental investigation of synthesis of polystyrene under various polymerization conditions such as solvent polarity, temperature, initial concentrations of initiator, catalyst, monomer and added salts or co-catalyst, which was achieved using the living cationic polymerization technology in conjunction with gel permeation chromatography (GPC) and NMR spectroscopy. Polymerizations of styrene were conducted using 1-phenyl ethylchloride (1-PEC) as an initiator and tin tetrachloride (SnCI4) as a catalyst in the presence of tetra-n-Butylammonium chloride (nBu4NCI). Effec
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2

Bahrin, Nurfariza. "Renewable monomers for bio-styrene formation using phenolic acid decarboxylase." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/100542/.

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Анотація:
Lignocellulose is an abundant natural polymer on earth that contains renewable resource of aromatic compound, the lignin. Many industrially valuable chemicals can be developed from lignin and this can reduce the dependency on petrochemicals. Wheat straw contains ferulic acid as one of its building blocks, which can be accumulated as a major metabolite from growth with Rhodococcus jostii RHA1, a known lignin degrading bacteria in minimal media. Using the enzyme phenolic acid decarboxylase (PAD) in engineered E.coli, ferulic acid was converted into 4-vinylguaiacol (3-methoxy-4-hydroxystyrene). T
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3

Tichagwa, Lilian M. "Synthesis of acrylate-based polymeric and polymerisable surfactants and their application in the emulsion polymerisation of styrene." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1185.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2006.<br>The study described in this dissertation examines the synthesis of mainly acrylate-based surfactants and their subsequent use as emulsifiers/stabilisers in the emulsion polymerisation of styrene. Some acrylamide-based surfactants were also studied, for comparison purposes only. Two major types of surfactants, polymerisable (surfactant monomers or surfmers) and polymeric, were synthesised, characterised and used in emulsion polymerisation reactions. The prepared polymerisable surfactants, 12-acryloyloxydodecanoic
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4

Clark, Darren Cameron. "Dual monomer grafting of styrene and maleic anhydride onto polyethylene, effect of polyethylene microstructure." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0020/NQ54405.pdf.

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5

Levy, Florence. "Fonctionnalisation d'un latex de polystyrène par un monomère chloré : le bis 2 chloroéthyl-itaconate." Lyon 1, 1987. http://www.theses.fr/1987LYO10538.

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Анотація:
Fonctionnalisation superficielle du polystyrene par bis 2-chloro ethyl-itaconate. Determination des constantes cinetiques et physicochimiques. Etude de la copolymerisation avec le styrene et l'acrylate de butyle
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6

Srichan, Sansanee. "Synthesis of sequence-controlled polymers by copolymerization of para-substituted styrenic derivatives and N-substituted maleimides." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAF005/document.

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Анотація:
Dans ce travail, les copolymérisations radicalaires contrôlées de monomères donneurs (dérivés du styrène) et accepteurs (maleimides N-substitués) ont été effectuées afin de préparer des polymères à séquences contrôlées. Ces macromolécules ont été préparées par polymérisation radicalaire contrôlée par la voie des nitroxides en utilisant le SG1 comme agent de contrôle. Des polymères ayant des microstructures bien définies ont été obtenus par le contrôle du temps de l’addition d’une petite quantité de monomère accepteur au cours de la polymérisation d’un large excès de monomère de type donneur. D
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7

Applin, Samantha. "Surfactant Free Emulsion Polymerization of Poly(Styrene-Co-Methyl Methacrylate): Correlation of Microsphere Characteristics with Monomer Reactivity and Water Solubility." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1530192354.

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Анотація:
Polymeric microspheres have been used in a broad range of applications from chromatographic separation techniques to analysis of air flow over aerodynamic surfaces. The preparation of microspheres from many polymer families has consequently been extensively studied using a variety of synthetic approaches. Although there are a myriad of polymeric microsphere synthesis methods, free-radical initiated emulsion polymerization is one of the most common techniques. In this work, poly(styrene-co-methyl methacrylate) microspheres were synthesized via surfactant-free emulsion polymerization. The effect
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8

Drockenmuller, Eric. "Synthèse de nouveaux nitroxydes et alcoxyamines fonctionnalisés. Application à la polymérisation radicalaire vivante/contrôlée de monomères vinyliques." Université Louis Pasteur (Strasbourg) (1971-2008), 2002. http://www.theses.fr/2002STR13071.

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Анотація:
Les travaux effectués au cours de cette thèse concernent la polymérisation radicalaire vivante/contrôlée de monomères vinyliques par les nitroxydes. Le principe de ce type de polymérisation repose sur l'établissement d'un équilibre entre espèces dormantes (ou alcoxyamines) et espèces actives (radicaux alkyle et nitroxyle). Afin d'abaisser la température de ce procédé et de l'étendre à d'autres monomères, nous avons modifié la réactivité du nitroxyde en introduisant divers substituants de polarité et d'encombrement stérique variables. Ainsi, une nouvelle classe de nitroxydes (b-sulfinyl nitroxy
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9

Malek, Fouad. "Synthèse de nouveaux monomères à chaînes latérales pyrazole et bipyrazole et leurs polymérisations." Montpellier 2, 1992. http://www.theses.fr/1992MON20140.

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Анотація:
Ce travail concerne la synthese et la caracterisation des polymeres et copolymeres obtenus par polymerisation de nouveaux monomeres styreniques, vinyliques, maleimiques et methacryliques porteurs des cycles pyridine, pyrazole et bipyrazole. Une discussion sur la copolymerisation de ces monomeres avec d'autres monomeres conduisant a des systemes accepteur-donneur est presentee. En plus, des comparaisons entre la structure et les proprietes, notamment thermiques, sont abordees. Enfin deux applications ont ete etudiees: la premiere concerne les resines acetylantes selectives, la seconde l'obtenti
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10

Ramirez, Marquez Walter. "Relations procédé de synthèse microstructure-morphologie-propriétés des copolymères acrylate de méthyle-styrène." Lyon 1, 1987. http://www.theses.fr/1987LYO19025.

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Анотація:
Copolymerisation en emulsion. Par le procede en reacteur ferme, l'existence d'azoetropes plus nombreux qu'en solution ou en masse confirme que les taux de reactivite sont des grandeurs cinetiques apparentes. Synthese de copolymeres a composition et a structuration controlees, par des procedes semicontinu, batch corrige et core-shell
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11

Guillaume, Jean-Luc. "Synthèse de colloïdes modèles par polymérisation en émulsion de styrène et d'acrylate de n-butyle : leur utilisation dans des études de rhéologie et de formation de film." Lyon 1, 1985. http://www.theses.fr/1985LYO10042.

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12

Hidalgo, Manuel. "Synthèse et caractérisation physicochimique et thermomécanique des matériaux filmogènes issus de latex à base styrène-acrylate de butyle fonctionnalisés." Lyon 1, 1992. http://www.theses.fr/1992LYO10015.

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Анотація:
On a etudie les aspects lies a la synthese chimique par polymerisation en emulsion de latex a base d'acrylate de butyle, d'une part et de copolymeres styrene-acrylate de butyle, d'autre part, fonctionnalises par des monomeres reticulants, ainsi que les aspects lies aux proprietes thermomecaniques des films obtenus a partir de ces latex. Les resultats ont ete regroupes en quatre parties, a savoir: i) etude des systemes a base de styrene-acrylate de butyle non fonctionnalises, utilises comme systemes de reference; ii) etude des systemes a base de styrene-acrylate de butyle fonctionnalises par un
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13

Bonardi, Christian. "Copolymérisation en émulsion styrène-acrylate de butyle en présence d'un monomère réticulable (n-méthylolacrylamide) : relation procédé de synthèse-structure-propriétés." Lyon 1, 1987. http://www.theses.fr/1987LYO10543.

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Анотація:
Synthese de copolymeres styrene/acrylate de butyle filmables et reticulables par un traitement thermique. Determination de la morphologie des particules de latex et de la repartition du monomere fonctionel. Etude des proprietes mecaniques
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14

Bonardi, Christian. "Copolymérisation en émulsion styrène-acrylate de butyle en présence d'un monomère réticulable (N-méthylolacrylamide) relation procédé de synthèse-structure-propriétés /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376030979.

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15

Quinebeche, Sébastien. "Suivi cinétique des polymérisations et copolymérisations anioniques de monomères éthyléniques par spectroscopie IR et UV-visible in situ." Bordeaux 1, 2007. http://www.theses.fr/2007BOR13359.

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Анотація:
Les travaux présentés dans ce texte concernent la mise au point d'une nouvelle technique de suivi cinétique des polymérisations et copolymérisations anioniques du styrène (S), de l'isoprène (l), du 1,1-diphényléthythylène (DPE) et du méthacrylate de méthyle (MMA), au moyen du couplage des spectroscopies IR et UV-visible in situ. L'objectif de l'étude est de mieux comprendre l'influence de certains paramètres expérimentaux sur les différentes étapes qui interviennent dans la préparation des copolymères triblocs poly(styrène-b-butadiène-b-méthacrylate de méthyle) (SBM) dans les solvants non pola
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16

Filho, Aluisio Pinelli. "Modelagem matemática e estudo experimental da copolimerização de estireno e butadieno em emulsão." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17112006-123329/.

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Анотація:
Neste trabalho, estudos da copolimerização em emulsão de estireno e butadieno foram realizados em duas etapas. A primeira etapa consistiu na obtenção de um modelo matemático que representasse os processos em batelada e em semicontínuo através das principais variáveis do processo. Na segunda etapa, o efeito de diversas variáveis importantes ao processo foi avaliado, dentre elas: o tempo de adição dos reagentes, o tipo de alimentação empregado e a temperatura da reação. O modelo matemático se baseia em um trabalho previamente publicado que foi adaptado para simular o processo de copolimerização
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17

Goussé, Cécile. "Applications de la réaction de Diels-Alder aux polymères furaniques." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0007.

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Анотація:
Certains derives furaniques, obtenus a partir de la biomasse, se comportent comme d'excellents dienes vis a vis de la reaction de diels-alder. Dans cette perspective, l'application de cette reaction aux polymeres furaniques peut etre envisagee sous deux aspects. Le premier consiste en la modification de polymeres tels l'alcool polyvinylique ou le polystyrene par greffage de groupements pendants furaniques, qui seront ensuite mis en reaction avec des mono ou bismaleimides conduisant respectivement a des polyadduits ou des gels. Le second concerne la synthese et la polycondensation de monomeres
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18

CHYANG, SHEU JIH, and 許繼強. "Styrene Miniemulsion Polymerization ：Effect of Functional Monomers." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/07496673192438647699.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>88<br>In MMA miniemulsions stabilized by SDS/DMA, both the Ostwald ripening and creaming rates decrease with increasing [DMA] upon aging at 35℃. On the other hand no appreciable Ostwald ripening and creaming were detected for the SMA containing MMA miniemulsions. In addition, MMA miniemulsion shows a larger Ostwald ripening rate than STY miniemulsion stabilized by SDS/DMA. In STY miniemulsion polymerization stabilized by SDS/DMA（or SDS/SMA）, Rp increases with increasing [HEMA]. Nd and Nw also increase when [HEMA] increases. In addition, Mw increases with i
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19

Li, Donghong. "Copolymerization of styrene and butadiene monomers via miniemulsion /." Diss., 1998. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:9831807.

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20

Sanchez, John Lawrence. "Synthesis and characterization of divinyl monomers for styrene-based reaction injection molding." Thesis, 2003. http://wwwlib.umi.com/cr/utexas/fullcit?p3118071.

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21

Kuricová, Miroslava. "Molecular mechanisms involved in genotoxicity of industrially important monomers (styrene, 1,3-butadiene)." Doctoral thesis, 2009. http://www.nusl.cz/ntk/nusl-370561.

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Анотація:
1 ABSTRACT The evaluation of individual health risk in workers occupationally exposed to industrial xenobiotics requires the use of a large number of parameters reflecting external exposure, internal exposure, biological effects and individual susceptibility. Environmental, occupational and life style-related exposure to mutagenic agents may contribute to cancer risk in humans. To prevent the potentially hazardous effects of such agents it is important to understand their mechanisms of action. Styrene is one of the most important monomer for producing polymers and copolymers in plastics, latex
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22

Jayanthi, S. "Oxidative Copolymerization Of Vinylmonomers : Studies On The Microstructure And Reactivities Of The Copolyperoxides." Thesis, 1995. https://etd.iisc.ac.in/handle/2005/1840.

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23

Jayanthi, S. "Oxidative Copolymerization Of Vinylmonomers : Studies On The Microstructure And Reactivities Of The Copolyperoxides." Thesis, 1995. http://etd.iisc.ernet.in/handle/2005/1840.

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24

Wei, Jy-Jinn, and 魏進枝. "Fundamentally Thermal Hazard Analysis for Inhibited Styrene Monomer." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/02627565451554346482.

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碩士<br>國立雲林科技大學<br>環境與安全工程系碩士班<br>91<br>ABSTRACT Inhibited Styrene Monomer (SM) is one of the important raw materials used in the petrochemical industry. Under ambient conditions, it demonstrates extremely weak exothermic behaviors.Compared with other calorimeters used for hazard analysis, such as Vent Sizing Package2, (VSP2) which cannot detect such weak exothermic phenomena, in this research, the exothermic polymerization is characterized by an isothermal microcalorimeter, Thermal Activity Monitor (TAM) and Differential Scanning Calorimeter (DSC). Thermograms showed that SM with 10 ppm inhibi
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25

Chin-Chuan, Chen, and 陳進傳. "Exothermic Decomposition of Styrene Monomer at Low Temperature Conditions." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/02473290762355739699.

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Анотація:
碩士<br>國立雲林科技大學<br>環境與安全工程系碩士班<br>90<br>Styrene Monomer (SM) has been widely used for polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), styrene-acryonitrile (SAN) in the petrochemical industry. In recent years, from 1994 to 2001, several serious accidents occurred in Taiwan due to human errors, its inherent instability, accidents or external fire. Compared with other calorimrtries on thermal hazard analysis, such as differential scanning calorimetry (DSC), vent sizing package, (VSP) which can not detect such weak exothermic phenomena, in this research, the exothermic polymeriz
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26

"Determination of styrene monomer in food-contact polymers and foodstuffs by gas chromatography." Chinese University of Hong Kong, 1991. http://library.cuhk.edu.hk/record=b5886905.

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Анотація:
by Lung Man Tung.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1991.<br>Includes bibliographical references.<br>ACKNOWLEDGMENT --- p.i<br>ABSTRACT --- p.ii<br>Chapter CHAPTER 1 --- GENERAL INTRODUCTION --- p.1<br>Chapter 1.1 --- Stationary phases and detectors --- p.2<br>Chapter 1.2 --- Internal standardization --- p.5<br>Chapter 1.3 --- Common pre-treatment technique --- p.6<br>Chapter 1.4 --- Pre-treatment techniques --- p.9<br>Chapter 1.5 --- Objectives of this work for the determination of styrene --- p.11<br>Chapter CHAPTER 2 --- EXPERIMENTAL --- p.13<br>Chapter 2.1 ---
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27

Hu, Wei-Chun, and 胡偉駿. "Ethylene-Derived Process Design and Integration:Case Studies of Ethylene Oxide and Styrene Monomer." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/69ft88.

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碩士<br>淡江大學<br>化學工程與材料工程學系碩士班<br>95<br>Since energy crisis, heat integration has become one of the important issues in the process systems engineering. Due to the price of energy is constantly rising, how to increase the efficient use of energy in the process has also become of great importance in the field of process design. Ethylene oxide and styrene are both derived from the most basic and important building block of petrochemicals, i.e., ethylene. Ethylene oxide is a chemical used to make ethylene glycol, which is the primary ingredient in antifreeze. It is also used in the manufacture o
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28

謝如嘉. "Studies on the soapless emulsion copolymerization of styrene and the monomer of chelating functional group." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/41756080406117303282.

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碩士<br>國立成功大學<br>化學工程學系<br>88<br>Modify GMA, a new monomer with chelating functional group, which was synthesized by Glycidyl methacrylate（GMA） and Iminodiacetic acid（IDA）. M-GMA and styrene copolymer was prepared by soapless emulsion polymerization. The variables studied were the monomer concentration, initiator concentration, temperature, pH value and cosolvent. The reaction kinetics, which expressed as follow, were determined by measuring the pH value, conductivity, zeta potential, particle size and conversion. R=k[kps]0.22[M-G]-2[styrene]1 The nucleation mechanis
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29

Wang, Ching-Yi, and 王瀞儀. "Risk Management of Styrene Monomer Market for Plasticized Raw Materials - Application of Value-at-Risk." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/av6rd4.

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碩士<br>淡江大學<br>財務金融學系碩士在職專班<br>106<br>In this paper, the jump - diffusion model ARJI is used to investigate the abnormal beating state and the variability reaction caused by the styrene monomer market risk management. The jump frequency and jump size estimated by the model are confirmed, the styrene monomer market risk management, research findings The market risk application of styrene monomer further captures the fat tail, the optimization of time fluctuation and discontinuous jump behavior, and the instantaneous jump behavior fluctuation caused by the common information is 5.096% , which is
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30

Chang, Yih-Her, and 張義和. "Sulfonated Tetracarboxylic Polyester (SMTAPE) Emulsifier：Synthesis, Surfactant Characteristics, and Studies on The Emulsion Polymerization of Butyl Methacrylate/Styrene Monomer." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/02331666243821373135.

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博士<br>國立清華大學<br>化學工程學系<br>87<br>A novel polymeric emulsifier， SSIPM modified tetracarboxylic acid terminated polyester (SMTAPE)was prepared by end-capping sulfopolyester polyol with TMA in this study. The surface characteristics of SMTAPE， the optimum hydrophobic length of SMTAPE for the emulsion polymerization of PBMA， the nucleation mechanism and the surface area occupied by a SMTAPE molecule on a polymer latex particle at room temperatuve were studied by analyzing the surfactant characteristics， the reaction kinetic and the stability of the latices， the consumption of SMTAPE emulsifier duri
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