摘要
联用宽分布ＶＤＣ－ＭＡ悬浮共聚物试样的［η］和ＧＰＣ谱图数据，确定了此共聚物在四氢呋喃溶剂中、３０℃下的Ｍａｒｋ－Ｈｏｕｗｉｎｋ常数：Ｋ＝２．５４×１０－２，α＝０．６７５７。进一步研究了单体配比、转化率、引发剂浓度以及聚合温度等因素对于分子量及其分布的影响，并建立了分子量模型。
In this paper,GPC and intrinsic viscosity measurements of wide-distribution VDC-MA(mass ration 93:7)suspension copolymer in tetrahydrofuran at 30℃ were done to determine Mark-Houwink constants.The values of K=2.541×10-2,and α=0.6757 were obtained.Further more,the influence of monomer composition,conversion,concentration of initiator,and polymerization temperature on MW and MWD were analysized.The correlation for MW vs.concertration of initiator and polymerization were obtained.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第5期16-21,共6页
Polymer Materials Science & Engineering
基金
国家自然科学基金
关键词
偏氯乙烯
丙烯酸甲酯
分子量分布
悬浮共聚
s:vinylidene chloride,methyl arcylate,Mark-Houwink constants,GPC,intrinsic viscosity,molecule weight,molecule weight distribution
