Cross-linking of cellulose and poly(ethylene glycol) with citric acid
Cross-linking of cellulose and poly(ethylene glycol) with citric acid
复制标题
DOI：
10.1016/j.reactfunctpolym.2015.03.007
复制
发表时间：
2015-05-01
影响因子：
5.1
通讯作者：
Hughes, Mark
中科院分区：
文献类型：
--
作者：
de Cuadro, Pamela;Belt, Tiina;Hughes, Mark
采用聚乙二醇（PEG）浸渍和柠檬酸（CA）交联的方法对天然纤维素纤维进行改性。为了了解系统中不同组分的贡献，研究了仅含CA和纤维素纤维（滤纸）的对照品。还评估了次磷酸钠作为催化剂的效果。结果表明，在纤维素-PEG-CA反应体系中确实形成了酯键，如重量百分比增加（WPG）和FTIR分析所示。通过使用5%CA和10%PEG（计算为来自纤维素的重量%）获得最佳结果。在反应中，环境友好的CA可防止PEG在洗涤过程中从纤维素中浸出，从而在基于纤维素纤维的尺寸稳定产品中具有良好的应用前景。(C)2015 Elsevier B. V.版权所有。
A novel approach to modifying native cellulosic fibres with poly(ethylene glycol) (PEG) impregnation and simultaneous cross-linking by citric acid (CA) was investigated. To understand the contributions of different components in the system, control references with just CA and cellulosic fibres (filter paper) were studied. The effect of sodium hypophosphite as a catalyst was also assessed. The results revealed that ester bonds are indeed formed in the cellulose-PEG-CA reaction system, as indicated by weight percentage gain (WPG) and FTIR analysis. The best results were achieved by using 5% CA and 10% PEG (calculated as weight-% from cellulose). In the reaction, the environmentally friendly CA prevents PEG from being leached out of cellulose during washing, resulting in promising future applications in dimensionally stabilized products based on cellulosic fibres. (C) 2015 Elsevier B.V. All rights reserved.