文献类型： 外文期刊
作者： Zhang, Meng 1 ; Wu, Yuanjuan 2 ; Wu, Haiyan 1 ; Zhang, Qingsi 3 ;
作者机构： 1.Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Peoples R China
2.Shandong Acad Agr Sci, Cent Lab, Jinan 250100, Peoples R China
3.Shandong Polytech Univ, Sch Chem & Pharmaceut Engn, Jinan 250353, Peoples R China
关键词： Ketone-hydrazine reaction;Post-crosslinking;Reactive polydimethylsiloxane;Waterborne polyurethane
期刊名称：JOURNAL OF POLYMER RESEARCH （ 影响因子：3.097； 五年影响因子：2.599 ）
ISSN：
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收录情况： SCI
摘要： A series of novel reactive polydimethylsiloxanes (PDMS) bearing hydroxypropyl group at both chain ends and carbonyl groups at the side chain were incorporated with toluene 2,4-diisocyanate, dimethylol propionic acid and polypropylene glycol by the prepolymer process to synthesize a series of reactive PDMS-modified waterborne polyurethanes. After post-added dihydrazide, self-crosslinking was achieved by the reaction between the dihydrazide and carbonyl group during film formation. The latex film properties of them were investigated compared with that of pure waterborne polyurethane. Crosslinking was indeed enhanced in the films. Tensile strength, elongation at break and higher performance in water and solvent adsorptions were also detected.
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