Synthesis and structure-property relationships of bismaleimides containing oxyalkylene linkages

• Published in: Polymer (Guildford) Vol. 34; no. 4; pp. 813 - 818
• Main Authors: Goldfarb, Ivan J., Feld, William A., Saikumar, Jayaraman
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01.01.1993; Elsevier
• Subjects: Applied sciences; bismaleimides; Chemical properties; dynamic mechanical analysis; Exact sciences and technology; oxyalkylene; parallel-plate rheometry; Polymer industry, paints, wood; Properties and testing; synthesis; Technology of polymers; torsion impregnated cloth analysis; synthesis; bismaleimides; torsion impregnated cloth analysis; oxyalkylene; parallel-plate rheometry; dynamic mechanical analysis; Crosslinked copolymer; Viscosity; Bismaleimide resin; Gel point; Preparation; Temperature effect; Ether copolymer; Maleimide derivative copolymer; Property structure relationship; Experimental study; Glass transition temperature; Thermosetting resin
• ISSN: 0032-3861; 1873-2291
• DOI: 10.1016/0032-3861(93)90367-J

The synthesis and the effects of variation in structure on the resulting processing and final properties of a series of bismaleimides based on diamines containing flexible units of variable length or flexible units of fixed length with varying-length pendent groups is presented. Thermal analysis, parallel-plate rheometry and torsion impregnated-cloth analysis were utilized to characterize the processing, cure and final properties. It was found that, by appropriately choosing the size of main-chain and pendent aliphatic groups in bismaleimides containing oxyalkylene linkages, one can control the breadth of the cure window without adversely affecting either thermal stability or final glass transition temperatures.