磺化聚砜膜材料的分子量  

MOLECULAR WEIGHT OF SULFONATED POLYSULFONE FOR FILM MATERIALS

作　　者：王甦畛 忻永和[1] 钱锦文[1] 

机构地区：[1]浙江大学化学系

出　　处：《水处理技术》1989年第1期22-28,共7页Technology of Water Treatment

基　　金：国家自然科学基金

摘　　要：本文用溶液稀释法,膜渗透压法和光散射法测定了聚电解质—磺化聚砜钠盐的特性粘数[η]、数均分子量(?)和重均分子量(?)。提出了在25±0.02℃下,含有0.07 N NaNO_3的二甲基甲酰胺(DMF)中,其试样的[η]与M 的经验关系式:[η]_(os)=1.200×10^(-4)M^(0.787)[η]_(L1)=1.469×10^(-3)M^(0.525)并对聚电解质分子量测定的特殊性进行了理论分析。The intrinsic viscosity and number-average molecular weight and weight-average molecular weight of polyelectrolyte-Na-salts of sulfonated polysulfonehave been determined by methods of solution-dilutting and osmotic pressureand light scattering in this paper.The experiential relationship betweenintrinsic viscosity [η] and molecular weight M of the samples at 25±0.02℃in DMF containing 0.07 N NaNO_3 has been proposed:[η]_(os):=1.200×10^(-4)M^(0.787)[η]_(L_1):=1.469×10^(-3)M^(0.525)And,the speciality of determination for molecular weight of polyelect-rolyte was analyzed theoretically.

关 键 词：分子量 磺化聚砜膜 膜 材料 

分 类 号：O631.61[理学—高分子化学]