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Eco-Friendly Adhesion of Isosorbide-Based Polycarbonate
Ruiqi Han1, Kazuaki Matsumura1, Masayuki Yamaguchi1
1Graduated School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan.
Abstract:
We investigated the practical adhesion of a conventional poly(vinyl alcohol) glue with a glassy isosorbide-based polycarbonate (ISB-PC) comprising isosorbide and 1,4-cyclohexanedimethanol. The addition of 1 wt.% of a copolymer of vinyl alcohol and butenediol to the ISB-PC greatly improved its lap-shear strength. This improvement may be attributed to the dissolution of the copolymer chains in the ISB-PC, which had a low water droplet contact angle. Furthermore, the blend was transparent because most of the copolymer chains dissolved in the ISB-PC. Microplastics present a serious environmental issue, even for adhesives. Therefore, the present technique to modify ISB-PC to show good lap-shear strength with a biodegradable glue is attractive.

