Size‐exclusion Chromatography of Urea‐Formaldehyde Resins

British Polymer Journal Pub Date : 1986-09-01 DOI:10.1002/PI.4980180512

T. Hlaing, A. Gilbert, C. Booth

引用次数: 10

Abstract

Samples of urea-formaldehyde resin have been investigated by means of size-exclusion chromatography systems: (A) Zorbax PSM packing with either pure N,N-dimethylacetamide (DMA) eluant or DMA+0.1 mol dm−3 LiNO3 eluant; (B) Styragel packing with DMA eluant. In addition to separation by size-exclusion, adsorption/partition and hydrodynamic effects were observed. The influence of reaction time and conditions on the production of large soluble aggregates was investigated briefly.

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尿素-甲醛树脂的粒径-排除色谱法

采用排粒径层析系统对脲醛树脂样品进行了研究:(A) Zorbax PSM填料采用纯N,N-二甲基乙酰胺(DMA)洗脱液或DMA+0.1 mol dm−3 LiNO3洗脱液;(B)带DMA洗脱液的聚苯乙烯包装。除粒径隔离分离外，还观察到吸附/分配和水动力效应。简要探讨了反应时间和条件对制备大可溶性团聚体的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

British Polymer Journal

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