Glass Transition Behavior of Polyisoprene: The Influence of Molecular Weight, Terminal Hydroxy Groups, Microstructure, and Chain Branching
- 1 March 1982
- journal article
- Published by Rubber Division, ACS in Rubber Chemistry and Technology
- Vol. 55 (1) , 245-252
- https://doi.org/10.5254/1.3535872
Abstract
The glass transition temperatures for a series of high-1,4 linear and star-branched polyisoprenes have been measured by differential scanning calorimetry. The Fox-Flory relation for the linear polyisoprenes was found to be Tg=Tg∞−1.76×104Mn−1. The influence of hydroxyl groups on Tg was also examined for low molecular weight (<2.2×104) polyisoprenes.Keywords
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