巯基/烯丙基/环氧水性杂化涂料的制备与性能

涂料工业 , 2012, 42(5): 28-40. doi: 10.3969/j.issn.0253-4312.2012.05.008

巯基/烯丙基/环氧水性杂化涂料的制备与性能

付长清 ^1, , 陈樟 ^2, , 刘海波 ^3, , 陈义旺 ^4, , 申亮 ^5,

1.南昌大学高分子研究所,南昌330031;江西科技师范学院江西省有机功能分子重点实验室,南昌330013

2.江西科技师范学院江西省有机功能分子重点实验室,南昌330013

3.江西科技师范学院江西省有机功能分子重点实验室,南昌330013

4.南昌大学高分子研究所,南昌330031

5.江西科技师范学院江西省有机功能分子重点实验室,南昌330013

基金项目: 江西省教育厅青年科学基金(GJJ09575) 国家自然科学基金(51063002)

关键词： RAFT乳液聚合 , 杂化 , 巯基点击反应 , 水性涂料

Preparation and Properties of Hybrids Waterborne Coating Containing Thiol/Allyl/Epoxy Groups

采用可逆加成-断裂链转移自由基(RAFT)乳液聚合方法,制得聚甲基丙烯酸烯丙酯(P- AMA)和聚甲基丙烯酸缩水甘油酯(P- GMA) RAFT乳液,并将2种乳液按比例与巯基封端的聚氨酯水分散体(PU-SH)混合成膜,得到具有最佳涂膜性能的杂化涂料配方.采用傅里叶变换红外光谱仪(FT - IR)对乳液及涂膜的结构进行表征,用差示扫描量热仪(DSC)等仪器对涂膜的性能进行研究,结果表明:水性杂化体系中的巯基与烯丙基在紫外光照的条件下发生巯基-烯丙基点击反应,与环氧基在受热的条件下发生了环氧开环反应.杂化涂料在经光/热双重固化后涂膜的吸水率为30％、凝胶量为99％、耐溶剂(丁酮)擦试为330次、铅笔硬度为5H、耐冲击性为50 cm.

参考文献

[1]	Charles E. Hoyle;Christopher N. Bowman .Thiol-Ene Click Chemistry[J].Angewandte Chemie,2010(9):1540-1573.
[2]	Wayne D Cook;Fei Chen;Derek W Pattison .Thermal polymerization of thiol-ene network-forming systems[J].Polymer international,2007(12):1572-1579.
[3]	Schreck, K.M.;Leung, D.;Bowman, C.N. .Hybrid organic/inorganic thiol-ene-based photopolymerized networks[J].Macromolecules,2011(19):7520-7529.
[4]	Lumelsky Y;Zoldan J;Levenberg S;Silverstein MS .Porous polycaprolactone-polystyrene semi-interpenetrating polymer networks synthesized within high internal phase emulsions[J].Macromolecules,2008(4):1469-1474.
[5]	Sangermano A;Malucelli G;Priola A;Manea M .Synthesis and characterization of acrylate-oxetane interpenetrating polymer networks through a thermal-UV dual cure process[J].Progress in Organic Coatings: An International Review Journal,2006(3):225-230.
[6]	Carioscia JA;Stansbury JW;Bowman CN .Evaluation and control of thiol-ene/thiol-epoxy hybrid networks[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(6):1526-1532.
[7]	Ricardo Acosta Ortiz;Bertha A. Puente Urbina;Ramiro Guerrero Santos .Development of Hybrid Polymeric Materials Based on Thiol-Ene/Cationic Formulations[J].Macromolecular materials and engineering,2008(9):731-739.
[8]	Marco Sangermano;Monica Cerrone;Giovanna Colucci .Preparation and characterization of hybrid thiol-ene/epoxy UV-thermal dual-cured systems[J].Polymer international,2010(8):1046-1051.
[9]	TADATOMI N;ATSUSHI K;KOUTARO K et al.Novel thermal curing reaction of epoxy resin and poly(glycidyl methacrylate) using photo-generated difunctional thiols[J].Polymer Jourral,1996,28(09):795-800.
[10]	Harvison, M.A.;Lowe, A.B. .Combining RAFT radical polymerization and click/highly efficient coupling chemistries: A powerful strategy for the preparation of novel materials[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2011(11):779-800.

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