Effects of Branching on Melt-Prepared Poly(Phenylene Sulfide)
- 1 May 1993
- journal article
- research article
- Published by Taylor & Francis in Journal of Macromolecular Science, Part A
- Vol. 30 (5) , 323-330
- https://doi.org/10.1080/10601329308009410
Abstract
Poly(phenylene sulfide), made via the melt polymerization of p-diiodobenzene and sulfur, has been prepared with added branching species at levels up to 1.0 mol%. Effects of increasing branching on the thermal characteristics were seen to be quite large for even 0.25 mol% brancher. Both the Tm and the apparent rate of crystallization, as judged by the undercooling for melt crystallization, Tm minus the crystallization upon cooling from the melt, decreased rapidly with increasing brancher level. Melt rheology also confirmed the large increase in melt elasticity in this system with increasing branching level, even at the moderate melt viscosities of the polymers of this work. Melt elasticity for polymers with 0.5 mol% brancher or above was sufficiently high to preclude rheological testing.Keywords
This publication has 1 reference indexed in Scilit:
- Some characteristics of a new and novel melt preparation method for poly(phenylene sulfide)Makromolekulare Chemie. Macromolecular Symposia, 1992