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首页> 外文期刊>Journal of Applied Polymer Science >Graft copolymerization of styrene or methyl methacrylate onto syndiotactic polystyrene by ATRP technique
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Graft copolymerization of styrene or methyl methacrylate onto syndiotactic polystyrene by ATRP technique

机译：通过ATRP技术将苯乙烯或甲基丙烯酸甲酯接枝到间规聚苯乙烯上

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Functionalized syndiotactic polystyrene (sPS) copolymers, including sPS-graft-atactic polystyrene (aPS) copolymer or sPS-graft-poly(methyl methacrylate) (PMMA) copolymer, were synthesized and characterized. sPS has been synthesized by using half sandwich titanocene/methylaluminoxane catalyst in homogenous conditions. Then, alpha-phenyl chloroacetylation of sPS was accomplished in a heterogeneous process by using carbon disulfide as dispersing medium and alpha-phenyl chloroacetyl chloride and anhydrous aluminum chloride as acetylating agent and catalyst, respectively. The graft copolymer of sPS with aPS or PMMA were synthesized by atom transfer radical polymerization using alpha-phenyl chloroacethylated sPS as initiator and CuBr and bipyridine as catalyst. The structure of obtained copolymer was investigated by H-1 NMR, FTIR spectroscopy, and thermal behavior of copolymers was performed by differential scanning calorimetry analyses. (c) 2007 Wiley Periodicals, Inc.
机译：合成并表征了功能化间规聚苯乙烯（sPS）共聚物，包括sPS-接枝-无规聚苯乙烯（aPS）共聚物或sPS-接枝-聚（甲基丙烯酸甲酯）（PMMA）共聚物。 sPS是通过在均相条件下使用半夹心钛茂/甲基铝氧烷催化剂合成的。然后，通过使用二硫化碳作为分散介质并且分别使用α-苯基氯乙酰氯和无水氯化铝作为乙酰化剂和催化剂，以非均相方法完成sPS的α-苯基氯乙酰化。 sPS与aPS或PMMA的接枝共聚物是通过原子转移自由基聚合反应合成的，使用α-苯基氯代乙酰基化的sPS作为引发剂，CuBr和联吡啶作为催化剂。通过H-1 NMR，FTIR光谱研究所获得的共聚物的结构，并且通过差示扫描量热分析来执行共聚物的热行为。 （c）2007年Wiley Periodicals，Inc.

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