Yasushi Kamimura, Osamu Haba, T. Endo
Apr 15, 2006
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0
Influential Citations
4
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Journal
Journal of Polymer Science Part A
Abstract
This article deals with the latent reactive polymers having isocyanate moiety obtained from the radical copolymerization of 2-propenyl isocyanate (2PI) with styrene, 2PI with methyl methacrylate (MMA), and 2-methacryloyloxyethyl isocyanate (MOI) with styrene. The radical copolymerization was carried out in benzene (5.00 M by total monomer) in the presence of AIBN (3.00 mol % of total monomer) at 60 °C for 24 h. The isocyanate moiety in each copolymer was stable at room temperature for more than 6 months under aerobic atmosphere, because no change of the infrared absorption based on isocyanate group of the resulting copolymer at around 2250 cm−1 was observed. Isocyanate moiety of obtained copolymer (poly(2PI-co-St)) reacted with excess diamines or diols at 80 °C in THF solution to afford the crosslinked polymer quantitatively. These results could demonstrate that isocyanate moiety in the copolymers showed thermal and reactive latency. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2448–2453, 2006