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OALib Journal期刊
ISSN: 2333-9721
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uv固化超支化大分子光引发剂的合成与表征
Keywords: 紫外光固化,大分子光引发剂,超支化聚合物
Abstract:
？以丙烯酸甲酯(ma)、二乙醇胺(da)、三甲醇丙烷(tmp)和丁二酸酐(sa)，2-羟基-2-甲基-1-苯基-1-丙酮（hmpp）等为原料,通过4步反应,合成了一种超支化光引发剂:hpae-1-sa-hmpp.用ft-ir，1h-nmr，uv分析，tga等对反应产物进行了表征。ft-ir,1h-nmr结果表明,合成了目标产物hpae-1-sa-hmpp,uv分析可知其紫外最大吸收峰在330nm,与小分子光引发剂hmpp相比，稍有红移。引发tmpta固化实验可知hpae-1-sa-hmpp光引发剂在5%（质量分数）时具有最大引发效率.引发效率略低于小分子光引发剂hmpp。
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