Synthesis and characterization of a novel waterborne stilbene-based polyurethane fluorescent brightener

作     者：Xian Hai Hu Xing Yuan Zhang Jia Bin Dai 

作者机构：CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China School of Materials and Chemical Engineering Anhui Institute of Architecture and Industry Hefei 230022 China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2011年第22卷第8期

页      面：997-1000页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Financial supports from the National Natural Science Foundation of China(No.51073144) Anhui Provincial Education Department(Nos.KJ2008B165 and KJ2010B039) 

主　　题：Waterborne polyurethane Fluorescent brightener VBL Fluorescence 

摘      要：A novel waterborne stilbene-based polyurethane fluorescent brightener dispersion WPU-VBL was synthesized by incorporating chemically disodium 4,4＇-bis[（4-anilino-6-hydroxyethylamino-1,3,5-triazin-2-yl）amino]stilbene-2,2＇-disulphonate（VBL） into the polyurethane chain using isophorone diisocyanate,poly（propylene glycol） and 2,2-dimethylol propionic *** structure of WPU-VBL was confirmed by means of Fourier transform infrared *** UV-vis absorption analysis showed a hypsochromic shift of 16 nm when VBL was blocked into polyurethane *** average molecular weight of 2.1×10~4, molecular weight distribution of 2.1 and average latex particle size of about 70 nm for WPU-VBL were determined based on the analysis of gel permeation chromatography and laser particle size *** was found that the fluorescence intensity of WPU-VBL was prominently enhanced because of the micro-circumstance of VBL and the fluorescence of WPU-VBL was very stable.