Synthesis and Structure--Property Relationships of Bismaleimides Containing Oxyalkylene Linkages

The synthesis and the effects of variation in structure on the resulting processing and final properties of a series of bismaleimiedes based on diamines containing flexible units of variable length or flexible units of fixed length with varying-length pendent groups are presented. Thermal analysis,...

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Bibliographic Details
Published in:Polymer (Guilford) 1992-04, Vol.34 (4), p.813-818
Main Authors: Goldfarb, I J, Feld, W A, Sikumar, J
Format: Article
Language:English
Online Access:Get full text
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Summary:The synthesis and the effects of variation in structure on the resulting processing and final properties of a series of bismaleimiedes based on diamines containing flexible units of variable length or flexible units of fixed length with varying-length pendent groups are presented. Thermal analysis, parallel-plate rheometry, and torsion impregnated-cloth analysis were utilized to characterize the procesing, cure and final properties. It was found that, by appropriately choosing the size of main-chain and pendent aliphatic groups in bismaleimides containing oxyalkylene linkage, the breadth of the cure window without adversely affecting either thermal stability or final glass transition temperature can be controlled.
ISSN:0032-3861