Synthesis of glycidyl azide polymers (GAPs) via binary ionic liquid–water mixtures without catalysts. Issue 5 (21st January 2016)

• Record Type: Journal Article
• Authors: Xu, Xiaodong; Liu, Meihua; Yin, Yuan; Zheng, Chunbai; Deng, Pengyang; Xue, Dongfeng
• Is Part Of: Green chemistry. Volume 18:Issue 5(2016)
• Page Start: 1364
• Page End: 1367
• Publication Date: 2016-01-21
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/c5gc02854j
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : A simple ionic liquid–water mixed solvent system without catalysts for the synthesis of GAP was reported, which could effectively avoid organic solvent pollution. Abstract : We report the preparation of glycidyl azide polymers (GAPs) by the reaction of a prepolymer polyepichlorohydrin (PECH) with sodium azide (NaN3 ) in mixture solvents of different mass ratios with ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and water without catalysts. The formation of GAP was confirmed by IR and NMR spectroscopy, and the molecular weight of the product was determined by gel permeation chromatography (GPC). The conversion of PECH was identified via quantitative 13 C-NMR spectroscopy. This method avoids solvent pollution and simplifies the reaction post-processing. The reaction was monitored by IR and 13 C-NMR. We concluded that the relative solubility of the reaction substrate in the mixed solvents has an important effect on the degree of the reaction.