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首页> 外文期刊>Journal of Applied Polymer Science >BULK AND EMULSION COPOLYMERIZATIONS OF N-BUTYL ACRYLATE AND POLY(METHYL METHACRYLATE) MACROMONOMER
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BULK AND EMULSION COPOLYMERIZATIONS OF N-BUTYL ACRYLATE AND POLY(METHYL METHACRYLATE) MACROMONOMER

机译：丙烯酸正丁酯和聚（甲基丙烯酸甲酯）大分子单体的本体和乳液共聚合

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摘要

Bulk and emulsion copolymerizations of an omega-unsaturated poly(methyl methacrylate) (PMMA) macromonomer with n-butyl acrylate (n-BA) were investigated. The reactivity of PMMA macromonomer in bulk copolymerization with n-BA was found to be lower than that of methyl methacrylate monomer with n-BA. The incorporation of PMMA macromonomer into poly(butyl acrylate) (PEA) latex particles by miniemulsion copolymerization was proved by high performance liquid chromatography-silica adsorption spectroscopy. Dynamic mechanical studies showed that PMMA macromonomer was grafted to the PEA backbone, and the degree of grafting increased as the ratio of PMMA macromonomer to n-BA increased. Microphase separation of the PMMA macromonomer grafts was observed at higher ratio of macromonomer (higher or equal to 10% weight of macromonomer based on total polymer phase). The n-BA/PMMA macromonomer copolymer behaved completely differently from the physical blend of PEA and PMMA macromonomer particles of the same composition. (C) 1996 John Wiley & Sons, Inc. [References: 29]
机译：研究了ω-不饱和聚甲基丙烯酸甲酯（PMMA）大分子单体与丙烯酸正丁酯（n-BA）的本体和乳液共聚。发现PMMA大分子单体与n-BA本体共聚的反应性低于甲基丙烯酸甲酯单体与n-BA的反应性。通过高效液相色谱-二氧化硅吸附光谱法证明了通过细乳液共聚将PMMA大分子单体引入聚丙烯酸丁酯（PEA）胶乳颗粒中。动态力学研究表明，PMMA大分子单体接枝到PEA主链上，接枝程度随PMMA大分子单体与n-BA的比例的增加而增加。在较高的大分子单体比例（基于总聚合物相的较高或等于10％的大分子单体重量）下观察到PMMA大分子单体接枝物的微相分离。 n-BA / PMMA大分子单体共聚物的行为与具有相同组成的PEA和PMMA大分子单体颗粒的物理共混物完全不同。 （C）1996 John Wiley＆Sons，Inc. [参考：29]

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