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Polymers from renewable resources. XX. Synthesis, structure, and thermal properties of semi-interpenetrating polymer networks based on cardanol–formaldehyde-substituted aromatic compounds copolymerized resins and castor oil polyurethanes

✍ Scribed by D. K. Mohapatra; D. Das; P. L. Nayak; S. Lenka

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
156 KB
Volume
70
Category
Article
ISSN
0021-8995

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✦ Synopsis

A large number of improved high-temperature stable semi-interpenetrating polymer networks (semi-IPNs) were synthesized by condensing copolymerized resins with castor oil-based polyurethane using ethylene glycol dimethacrylate (EGDM) as a crosslinker. The structures of these semi-IPNs were studied using various characterization techniques such as IR and nuclear magnetic resonance (NMR) spectra, and the thermal behavior of the semi-IPNs was also studied by thermogravimetric analysis (TGA). A plausible degradation mechanism was suggested in our previous communication.

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