Poly(allyl glycidyl ether)-A versatile and functional polyether platform

聚(烯丙基缩水甘油醚)——多功能聚醚平台

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作者:Bongjae F Lee, Matthew J Kade, Jerred A Chute, Nalini Gupta, Luis M Campos, Glenn H Fredrickson, Edward J Kramer, Nathaniel A Lynd, Craig J Hawker

Abstract

Allyl glycidyl ether, polymerized from potassium alkoxide/naphthalenide initiators under both neat and solution conditions was shown to be a highly-controlled process. In both cases, molar masses (10-100 kg/mol) were determined by the reaction stoichiometry, and low polydispersity indices (1.05-1.33) could be obtained with a full understanding of the dominant side reaction, isomerization of the allyl side chain, being developed. The degree of isomerization of allyl to cis-prop-1-enyl ether groups (0 - 10 % mol.) was not correlated to the molar mass or polydispersity of the polymer but was dictated by the polymerization temperature. This allows the extent of isomerization to be reduced to essentially zero under either melt or solution conditions at polymerization temperatures of less than 40 °C.

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