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Role of functionality in MDI‐based elastomer preparation
Author(s) -
Chang Wally L.,
Baranowski Tom,
Karalis Tom
Publication year - 1994
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.1994.070510614
Subject(s) - elastomer , polyester , polymer science , materials science , chain (unit) , extender , composite material , computer science , polyurethane , physics , astronomy
In our study of functionality, a control 4,4′‐diphenylmethane diisocyanate (MDI)‐based elastomer prepared from a linear polyester and a linear chain extender was compared to (1) those having functionality synthesized into the backbone of the polyester and (2) those having the functionality added as part of the chain extender package. A wide range of physical and mechanical properties of the finished elastomers were compared. The resultant information offers a strong basic understanding of the role of functionality in an MDI‐based polyester elastomer and also provides the complex chemical relationships involved in formulating a desired elastomer. This information will better enable the urethane researcher and manufacturer to pick and choose those attributes of elastomeric functionality that are necessary to fulfill their needs. © 1994 John Wiley & Sons, Inc.