Curing behavior and properties of the cured resin based on bismaleimide, bisoxazoline, and oleic acid ternary copolymer

• Published in: Journal of applied polymer science Vol. 108; no. 4; pp. 2321 - 2327
• Main Authors: Li, Youqing, Li, Shengfang, Tang, Heqing
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.05.2008; Wiley
• Subjects: 1,3‐phenylene bisoxazoline; 3-phenylene bisoxazoline; Applied sciences; bismaleimide; Copolymerization; curing behavior; Exact sciences and technology; FTIR; gelation; Organic polymers; Physicochemistry of polymers; Preparation, kinetics, thermodynamics, mechanism and catalysts; properties; resins; gelation; copolymerization; resins; Maleimide derivative copolymer; Condensation polymerization; curing behavior; Ethyleneimine copolymer; Experimental study; Thermal stability; Thermal properties; Ester copolymer; Bismaleimide resin; Waterproofness; Oleic acid; FTIR; Amide copolymer; 1,3-phenylene bisoxazoline; Reaction mechanism; Acid copolymer; Chemical properties; bismaleimide; Ring opening copolymerization; Oxazole derivatives; properties
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.27819

The curing behavior and properties of bismaleimide (BMI), bisoxazoline (1,3-PBO), and oleic acid ternary copolymers are investigated. It is found that the cure temperature of BMI/1,3-PBO or BMI/1,3-PBO/oleic acid could be lowered, compared with that of BMI. The reason lies in the copolymerization reaction between BMI, 1,3-PBO, and oleic acid. SEM results confirm that 1,3-PBO and oleic acid could toughen BMI system because of the formation of ester-amide bonds and the long fat chain of oleic acid. The cured resins from BMI/1,3-PBO or BMI/1,3-PBO/oleic acid have superior heat resistance and water resistance.