文献类型：期刊文献

英文题名：Relationship of intrinsic viscosity to molecular weight for poly (1, 4-butylene adipate)

作者：Zeng, Zuoxiang[1];Sun, Li[1];Xue, Weilan[1];Yin, Na[1];Zhu, Wanyu[2]

机构：[1]E China Univ Sci & Technol, Inst Chem Engn, Shanghai 200237, Peoples R China;[2]Shanghai Tianyang Hotmelt Adhes Co Ltd, Shanghai 201802, Peoples R China

年份：2010

卷号：29

期号：1

起止页码：66

外文期刊名：POLYMER TESTING

收录：;EI(收录号：20095312587560);WOS:【SCI-EXPANDED(收录号:WOS:000274562800011)】；

语种：英文

外文关键词：Intrinsic viscosity; Molecular weight; Poly (1, 4-butylene adipate); Mark-Houwink-Sakurada

摘要：The relationships between molecular weight and intrinsic viscosity were established for poly(1, 4-butylene adipate) (PBA) with the molecular weight M-w <= 20,000 in tetrahydrofuran at 298 K. Thus, two series of PBA samples having narrow and broad molecular weight distributions (MWD) were prepared by polymerization between 1,6-adipic acid and 1,4-butanediol. The number average molecular weights (M-n) of the samples were measured by end-group analysis. Size-exclusion chromatography (SEC) was used to determine average molecular weights (M-n, M-v, M-w, and M-z,). A numerical method for determination of Mark-Houwink-Sakurada (MHS) equation constants, a and K, was tested with success for the PBA samples, and the influences of polydispersity correction factor (q(MHS)) on the relationships were studied for PBA with narrow MWD(1.065-1.181) and broad MWD (1.75-2.327). (C) 2009 Published by Elsevier Ltd.