Alkylamines‐intercalated α‐zirconium phosphate as latent thermal anionic initiators |
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| Authors: | Osamu Shimomura Keisuke Maeno Atsushi Ohtaka Shunro Yamaguchi Junko Ichihara Kiyoko Sakamoto Ryôki Nomura |
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| Institution: | 1. Department of Applied Chemistry, Osaka Institute of Technology, , Osaka, 535–8585 Japan;2. Institute of Scientific and Industrial Research, Osaka University, , Osaka, 567‐0047 Japan;3. Department of Chemistry, Osaka Sangyo University, , Osaka, 574–8530 Japan |
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| Abstract: | The reaction of glycidyl phenyl ether (GPE) with 1‐aminoalkanes‐intercalated α‐zirconium phosphate (α‐ZrP·1‐aminoalkane): 1‐aminoalkanes 1‐aminopropane (α‐ZrP·Pr), 1‐aminobutane (α‐ZrP·Bu), 1‐aminooctane (α‐ZrP·Oct), and 1‐aminohexadecane (α‐ZrP·Hed) was carried out at varying temperatures for 1 h periods. Reaction progress was not observed until the reactants were heated to 80 °C or above. On increasing the temperature, the conversion factors increased such that, at 140 °C, conversions of 62% (α‐ZrP·Pr), 60% (α‐ZrP·Bu), 67% (α‐ZrP·Oct), and 64% (α‐ZrP·Hed) were obtained. The thermal stabilities as latent initiators were tested: GPEs reacted with α‐ZrP·Pr, α‐ZrP·Bu, and α‐ZrP·Oct at 40 °C for 360 h achieved conversions of 83, 55, and 59%, respectively. In contrast, the reaction in the presence of α‐ZrP·Hed did not proceed at 40 °C. The order of the thermal stability of GPE in the presence of α‐ZrP·1‐aminoalkane intercalation compounds was: α‐ZrP·Hed > α‐ZrP·Bu ≈ α‐ZrP·Oct > α‐ZrP·Pr. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52, 1854–1861 |
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| Keywords: | α ‐zirconium phosphate glycidyl phenyl ether intercalation latent thermal initiator anionic polymerization initiators resins |
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