甲基丙烯酸甲酯在纤维素纳米纤维上的乳液接枝聚合

H. Okada, Chao Zhao, Y. Mizuta, K. Yoshino, R. Sugimoto
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引用次数: 1

摘要

以二乙基(1,10-菲罗啉N1,N10)锌(II)配合物(phenz - dez)为溶剂,氧为引发剂,在室温下成功地将甲基丙烯酸甲酯(MMA)接枝到纤维素纳米纤维(CNFs)上。考察了反应温度、引发剂浓度和单体含量对接枝反应的影响。在接枝聚合过程中产生的非接枝PMMA分子量大于100万,通过尺寸排除色谱法测定。通过傅里叶变换红外光谱、热重分析和扫描电镜对PMMA接枝的CNFs进行了分析,证实了PMMA接枝在纳米纤维表面。本研究提出了一种在苯乙烯- dez和O2的乳液体系中将高分子量PMMA接枝到CNFs上的策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Emulsion Graft Polymerization of Methyl Methacrylate onto Cellulose Nanofibers
Methyl methacrylate (MMA) was successfully grafted onto cellulose nanofibers (CNFs) at room temperature in an emulsion system using a diethyl(1,10-phenanthroline N1,N10)zinc(II) complex (Phen-DEZ) with oxygen as the radical initiator. The effects of reaction temperature, initiator concentration, and monomer content on the grafting reaction were investigated. The molecular weight of the non-grafted PMMA, which was produced during graft polymerization, was more than 1 million, as determined by size exclusion chromatography. The PMMA-grafted CNFs were analyzed by Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy, which confirmed the grafting of PMMA on the nanofiber surface. The study presents a strategy for the grafting of high-molecular weight PMMA onto CNFs in an emulsion system using Phen-DEZ and O2.
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