通过二羟甲基丙酸、聚乙二醇、甲苯-二异氰酸酯及甲基丙烯酸-β-羟乙酯合成了可在水中自乳化分散的侧链带羧基的聚氨酯丙烯酸酯(PUA). 将PUA接枝到甲基丙烯酸甲酯/甲基丙烯酸缩水甘油酯共聚物上,经胺中和后得自乳化丙烯酸树脂接枝聚氨酯体系(g-PUA). 两类预聚物水分散系的表面张力均远小于纯水. DSC研究显示,接枝体系具有较高的光聚合转化率. 考察了聚乙二醇分子量等因素对固化膜玻璃化转变、热降解行为及一般物理性能的影响.
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