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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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
