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Exactly alternating silarylene–siloxane polymers. V. Evaluation of the mechanical properties of crosslinked elastomers
Author(s) -
Livingston Mary E.,
Dvornic Peter R.,
Lenz Robert W.
Publication year - 1982
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.1982.070270905
Subject(s) - siloxane , vulcanization , materials science , elastomer , polymer , thermal stability , composite material , polymer science , polymer chemistry , natural rubber , chemical engineering , engineering
The search for technologically useful elastomers with good thermal stability at elevated temperatures combined with low temperature flexibility has led us and others to the preparation of a series of linear alternating silarylene–siloxane polymers. Because of the very favorable thermal stabilities of these polymers, a detailed study was made of methods for their vulcanization and for the evaluation of their mechanical properties. The results of these investigations are described, including mechanical properties of the vulcanizates both before and after heat aging and before and after immersion in different solvents, as well as their characteristics after prolonged and repeated extension.