Characterization of polyamideamine-epichlorohydrin (PAE) resin: Roles of azetidinium groups and molecular mass of PAE in wet strength development of paper prepared with PAE
Characterization of polyamideamine-epichlorohydrin (PAE) resin: Roles of azetidinium groups and molecular mass of PAE in wet strength development of paper prepared with PAE
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DOI：
10.1002/app.21893
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发表时间：
2005-09-15
影响因子：
3
通讯作者：
Isogai, A
中科院分区：
文献类型：
--
作者：
Obokata, T;Yanagisawa, M;Isogai, A
聚酰胺-环氧氯丙烷(PAE)树脂是一种具有阳离子电荷的交联型杂化聚合物，在造纸过程中被广泛用作纸张的湿强剂。在这项研究中，PAE的分子质量值可以用尺寸排阻色谱更准确地测定出来。带有多角度激光光散射探测器(SEC-MALS)。商业和实验室生产的PAE样品的重平均分子质量(M-w)值分别为1,140,000和494,000，远高于迄今报道的值。SEC-MALS分析还表明，PAE分子具有高度的交联性结构和极宽的分子质量分布。用SEC-MALS和H-1核磁共振方法测定了PAE合成过程中PAE和PAE中间体中3-羟基氮杂环丁烷(AZR)的分子量值和含量，并研究了这些值与PAE纸页湿强度发展的关系。(C)2005年威利期刊公司。
Polyamideamine-epichlorohydrin (PAE) resin is a crosslinked heteropolymer having cationic charges, and has been widely used as a wet strength agent of paper in the papermaking process. In this study, more accurate molecular mass values of PAE were determined by size exclusion chromatography attached. with a multi angle laser light scattering detector (SEC-MALS). The obtained weight average molecular mass (M-w) values of commercial and laboratory-made PAE samples were 1,140,000 and 494,000, respectively, and these values were much higher than those reported so far. SEC-MALS analysis also revealed that PAE molecules had highly crosslinked structures and extremely wide molecular mass distributions. Molecular mass values and content of 3-hydroxy-azetidinium (AZR) groups in PAE and PAE intermediates during the course of PAE synthesis were also determined by the SEC-MALS and H-1 NMR methods, and the relationships between these values and the wet strength development of handsheets prepared with these PAE samples were studied. (c) 2005 Wiley Periodicals, Inc.