苯乙烯-马来酸酐交替共聚物合成及表征  

Synthesis and characterization of styrene-maleic anhydride alternating copolymers

作　　者：唐炳涛[1] 赵杰[1] 张淑芬[1] 王晓敏[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《大连理工大学学报》2011年第3期326-330,共5页Journal of Dalian University of Technology

基　　金：国家自然科学基金青年基金资助项目(20804007);教育部长江学者与创新团队发展计划资助项目(IRT0711);教育部高等学校博士学科点专项科研基金资助项目(200801411032);大连理工大学人才引进基金资助项目(893381)

摘　　要：以过氧化苯甲酰(BPO)为引发剂,甲苯为溶剂,采用溶液沉淀聚合工艺合成了苯乙烯-马来酸酐共聚物,并详细考察了聚合温度、引发剂用量、单体配比及聚合时间对聚合反应的影响.结果表明在温度80℃、引发剂用量0.7%、苯乙烯与马来酸酐配比1∶1、时间2h的条件下,聚合物收率可达96.6%.用13 C NMR、IR、GPC、元素分析对共聚物进行了表征,并采用TG测定了其热稳定性.聚合残液的HPLC、共聚物的元素分析与13 C NMR的分析结果表明,合成的苯乙烯-马来酸酐共聚物是一种交替共聚物.Styrene-maleic anhydride copolymer was synthesized by solution sediment polymerization method with BPO as initiator and toluene as solvent.The effect of polymerization temperature,dosage of initiator,ratio of monomer and polymerization time on polymerization was researched in detail.The yield of the copolymer can reach 96.6% under the conditions of polymerization temperature 80 ℃,initiator dosage 0.7%,molar ratio of styrene to maleic anhydride 1∶1 and polymerization time 2 h.The structure of the copolymer was confirmed by 13C NMR,IR,GPC and elemental analysis.Also,the thermal stability of the copolymer was tested by TG.Based on the analytical results of HPLC of polymeric residual liquid,elemental analysis and 13C NMR of the copolymer,the structure of styrene-maleic anhydride copolymer is confirmed to be alternating copolymer.

关 键 词：苯乙烯 马来酸酐 交替共聚物 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]