聚酯型高分子硫杂蒽酮光引发剂的制备及性能  

Preparation and Properties of Polyester-Type Polymeric Thioxanthone Photoinitiators

作　　者：王宝总[1,2] 韦军[1] 邱峻[1] 

机构地区：[1]盐城工学院材料工程学院,江苏盐城224051 [2]常州大学材料科学与工程学院,江苏常州213164

出　　处：《高分子材料科学与工程》2013年第1期149-152,157,共5页Polymer Materials Science & Engineering

基　　金：江苏省高校自然科学研究重大项目(11KJA430010);江苏省自然科学基金资助项目(BK2009170);盐城工学院自然研究基金面上项目(XKY2011001)资助

摘　　要：合成了含两个活性羟基的硫杂蒽酮单体2-(2,3-二羟基)丙氧基硫杂蒽酮(HPTX),再以HPTX、己二酰氯及N取代二乙醇胺进行逐步聚合,得到了侧链含有硫杂蒽酮,主链含有共引发剂胺的聚酯型高分子光引发剂(PET-HBTX),并进一步研究了共引发剂胺结构对光引发性能的影响。傅立叶红外变换光谱和核磁共振氢谱证实了高分子光引发剂的结构。紫外光谱证实了高分子的结构对硫杂蒽酮单元的最大紫外吸收几乎没有影响。用光致差示量热计(photo-DSC)研究高分子光引发剂引发聚酯丙烯酸酯树脂(PEA)的光聚合反应,结果表明,PET-HBTX可以有效地引发PEA的光聚合。2-（2, 3-dihydroxy） propoxy-thioxanthone （HPTX）, a thioxanthone monomer containing two active hydroxyl groups, was synthesized. Then, through step polymerization of HPTX, hexyl dichloride and N-substituted diethanolamine, polyester-type polymeric photoinitiators containing side-chain thioxanthone and in-chain coinitiator amine were obtained. Moreover, the influences of coinitiator amine structure on the photopolymerization were also studied. FT-IR and 1H-NMR analyses confirm the structures of polymeric photoinitiators. UV-Vis spectra show that the macromolecular chain has no obvious effect on the maximal absorption of thioxanthone moieties. Photopolymerization of polyester acrylate resin （PEA）, initiated by polyester-type polymeric thioxanthone photoinitiators, was studied through photo differential scanning calorimetry （photo-DSC）. The results show that PET-HBTX can effectively initiate the photopolymerization of PEA.

关 键 词：高分子光引发剂 硫杂蒽酮 光聚合 共引发剂 

分 类 号：TQ316.312[化学工程—高聚物工业]