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Preparation and properties of branched polybutylenesuccinate
Author(s) -
Kim Eun Kyoung,
Bae Jong Seok,
Im Seung Soon,
Kim Byoung Chul,
Han Yang Kyoo
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1228
Subject(s) - gel permeation chromatography , branching (polymer chemistry) , polymer chemistry , propane , multiangle light scattering , hydrodynamic radius , molar mass distribution , radius of gyration , condensation polymer , polybutylene succinate , oxetane , materials science , molecular mass , succinic acid , chemistry , copolymer , scattering , organic chemistry , polymer , light scattering , composite material , optics , physics , enzyme
Abstract To obtain long branched polybutylene succinate (PBS), modified PBSs were prepared by introducing a branching agent, trimethylol propane (TMP), to the polycondensation system of succinic acid and 1,4‐butanediol. Molecular parameters such as absolute molecular weight and root‐mean‐square (RMS) radius of the modified PBSs were measured by gel permeation chromatography (GPC) with a multiangle laser light‐scattering (MALLS) detector. The RMS radius of TMP05, PBS prepared by incorporating 0.5 wt % TMP during polycondensation, was the smallest of all PBSs tested at the same molecular weight. The notable shear thinning and much reduced loss tangent for TMP05 qualitatively supported the difference in their molecular structures predicted by GPC. The analytical results indicated that introducing 0.5 wt % TMP produced PBS with chain branches long enough to produce molecular entanglements. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1388–1394, 2001