纤维素科学与技术2018，Vol.26Issue(2)：1-8,8.DOI:10.16561/j.cnki.xws.2018.02.07
CO2/DBU/DMSO体系纤维素接枝聚σ-戊内酯的合成及材料性质研究
Synthesis and Property of Cellulose Graft σ-Valerolactone in DBU/DMSO/CO2System
摘要
Abstract
In this paper, cellulose has been dissolved successfully in newly developed solvent system superbases/DMSO/CO2, on which the cellulose-grafting-poly (σ -valerolactone) was synthesized through ring-opening polymerization of σ -valerolactone initiated by cellulose and in DMSO without adding extra external catalysts. It was believed that the superbases not only participated in the dissolution of cellulose, but also acted as an organocatalyst in the in situ subsequent ring-opening polymerization of σ -valerolactone initiated by cellulose. The effects of the structure of superbases, the mole ratio of σ -valerolactone to cellulose, the reaction time and temperature on the grafting efficiency were studied. The structure and thermochemical properties of the as-prepared cellulose-graft-poly(σ -valerolactone) was characterized by NMR, FT-IR, XRD, TGA, DSC and GPC. The results demonstrated that DBU and TBD presented the best performance among the superbases applied.关键词
纤维素/戊内酯/开环聚合/溶解Key words
cellulose/σ-valerolactone/ring opening polymerization/dissolution分类
化学化工引用本文复制引用
高可可,杜杰毫,张丽华,徐芹芹,郭元龙,胡雁鸣,谢海波..CO2/DBU/DMSO体系纤维素接枝聚σ-戊内酯的合成及材料性质研究[J].纤维素科学与技术,2018,26(2):1-8,8.基金项目
国家自然科学基金(NSFC: 21774028 （）
21574030) （）
贵州省高层次创新型人才培养对象-百层次(黔科合平台人才(2016)5652) （黔科合平台人才(2016）
贵州省科学技术基金重点项目((2016)1402) （(2016）
贵州大学高层次人才引进项目(贵州大学人基(专)合字(2015)01). （贵州大学人基(专）
