苯乙烯/N-苯基马来酰亚胺共聚物分子量测定和模型  

Measurement and Model of Molecular Weight for Styrene/N-Phenylmaleimide Copolymer

作　　者：单国荣[1] 翁志学[1] 黄志明[1] 潘祖仁[1] 

机构地区：[1]浙江大学化工系高分子科学与工程研究所,杭州310027

出　　处：《高等学校化学学报》2000年第9期1473-1476,共4页Chemical Journal of Chinese Universities

基　　金：教育部博士学科点专项基金!(批准号 :953350 4 )资助

摘　　要：从内聚能的角度建立了含共聚组成、序列不均匀性的共聚物分子量及分布理论 ,导出其计算式 .将凝胶渗透色谱 (GPC)与紫外吸收光谱 (UV)和示差折光仪 (DR)串接 ,测定苯乙烯 (St) / N-苯基马来酰亚胺(PMI)共聚物的分子量 .根据 St/ PMI共聚合原理 ,对 St-PMI共聚物的分子量进行模型化 ,该模型能较好地预测引发剂、单体配比、转化率对共聚物分子量的影响 .The molecular weight theory and calculation equation of copolymer were set up after consideration with the influence of composition and sequence distribution. The molecular weight for St/PMI copolymer was investigated by means of GPC connected with DR and UV detectors. From the mechanism of St/PMI copolymerization, a model of molecular weight for St-PMI copolymer was proposed to predicate the effects of initiator concentration, feed fraction and conversion on the molecular weight of St-PMI copolymer. The predicted results coincided with the experimental data.

关 键 词：苯乙烯 N-苯基马来酰亚胺 共聚物 分子量测定 

分 类 号：O631.61[理学—高分子化学]