Preparation and properties of branched polybutylenesuccinate
Article first published online: 14 MAR 2001
Copyright © 2001 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 80, Issue 9, pages 1388–1394, 31 May 2001
How to Cite
Kim, E. K., Bae, J. S., Im, S. S., Kim, B. C. and Han, Y. K. (2001), Preparation and properties of branched polybutylenesuccinate. J. Appl. Polym. Sci., 80: 1388–1394. doi: 10.1002/app.1228
- Issue published online: 14 MAR 2001
- Article first published online: 14 MAR 2001
- Manuscript Accepted: 15 MAY 2000
- Manuscript Received: 11 NOV 1999
- Korea Research Foundation. Grant Number: KRF-98-017-E00124.
- branched structure;
- rheological properties
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