以异佛尔酮二异氰酸酯(IPDI)、蓖麻油(CO)、丙烯酸羟丙酯(HPA)为原料,采用熔融缩聚法合成出端丙烯酸酯基预聚体;同时以CO和3-巯基丙酸(3-MPA)为原料采用酯化反应合成出端巯基光引发单体.将端不饱和双键聚氨酯丙烯酸酯预聚体与所制备巯基丙酸酯按一定比例复合,加入光引发剂,在紫外光照射下,预聚体中双键与光引发单体中巯基发生巯基-烯点击反应,制得聚氨酯丙烯酸酯固化膜.采用核磁共振氢谱(1HNMR)、红外光谱(FT-IR)、热重分析(TG)和光量热系统(Photo-DSC)等手段对合成预聚体、巯基丙酸酯及固化膜结构和性能进行了分析表征.结果表明:在紫外光辐照下,预聚体中不饱和双键与巯基化合物中巯基间发生了自由基加成反应,固化时间在60 s以内,且所制备UV固化膜具有良好的机械性能和热稳定性.
参考文献
| [1] | Shinichi Igarashi;Akiko N. Itakura;Masahiro Kitajima;Anye N. Chifen;Renate Forch;Rudiger Berger.Surface stress control using ultraviolet light irradiation of plasma-polymerized thin films[J].Applied physics letters,200614(14):143119-1-143119-3-0. |
| [2] | Qingli Hao;Xingen Xie;Wu Lei.Electrochemical Polymerization and Properties of Poly(triphenylene), an Excellent Blue-Green-Light Emitter[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201021(21):9608-9617. |
| [3] | Marcelo Augusto Gongalves Bardi;Luci Diva Brocardo Machado.Accompanying of parameters of color, gloss and hardness on polymeric films coated with pigmented inks cured by different radiation doses of ultraviolet light[J].Radiation Physics and Chemistry,20129(9):1332-1335. |
| [4] | 刘红波;刘恒权;李荣先;缪国元;薛亚波.混杂紫外光固化胶黏剂的研制[J].化工新型材料,2006(7):81-84. |
| [5] | 周钢;陈建山;奚海;吴宇雄.紫外光固化光敏齐聚物体系的研究进展[J].精细化工中间体,2003(1):5-7,13. |
| [6] | 刘红波;林峰.紫外光固化材料的研究热点[J].现代涂料与涂装,2008(9):38-41. |
| [7] | J.N. Tey;A.M. Soutar;S.G. Mhaisalkar;H. Yu;K.M. Hew.Mechanical properties of UV-curable polyurethane acrylate used in packaging of MEMS devices[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,20061/2(1/2):384-390. |
| [8] | Lundberg, P;Hawker, CJ;Hult, A;Malkoch, M.Click assisted one-pot multi-step reactions in polymer science: Accelerated synthetic Protocols[J].Macromolecular rapid communications,200812/13(12/13):998-1015. |
| [9] | Binder WH;Sachsenhofer R.'Click' chemistry in polymer and materials science[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,20071(1):15-54. |
| [10] | Okay O;Bowman CN.Kinetic modeling of thiol-ene reactions with both step and chain growth aspects[J].Macromolecular theory and simulations,20054(4):267-277. |
| [11] | Hartmuth C. Kolb;K. Barry Sharpless.Click chemistry: diverse chemical function from a few good reactions[J].Angewandte Chemie International Edition,200111(11):2004-2021. |
| [12] | Morten Meldal;Christian Wenzel Tornoe.Cu-Catalyzed Azide-Alkyne Cycloaddition[J].Chemical Reviews,20088(8):2952-3015. |
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