柠檬烯基聚氨酯水分散体的制备及其性能研究  

Preparation and properties of Limonene-based Waterborne Polyurethane

作　　者：郭浩 付长清 申亮 Guo Hao;Fu Changqing;Shen Liang(Department of Polymer and coating, Jiangxi Science ＆Technology Normal University, Nanchang 330013, China)

机构地区：[1]江西科技师范大学化学化工学院涂料与高分子系,南昌330013

出　　处：《江西科技师范大学学报》2017年第6期41-46,共6页Journal of Jiangxi Science & Technology Normal University

基　　金：国家自然科学基金(51263011;51563011);江西省自然科学基金(20161BAB203094);江西科技师范大学校级创新团队(2013);江西科技师范大学研究生创新专项资金项目(YC2015X18)

摘　　要：以柠檬烯为原料,通过巯基-烯点击化学反应合成了柠檬烯基二元醇(LDO)和羧酸型柠檬烯基亲水扩链剂(LHCE)。将这两种扩链剂代替1,4-丁二醇(BDO)和2,2-二羟甲基丙酸(DMPA)比较制备了四种聚氨酯水分散体。采用核磁(NMR)确认了两种扩链剂的结构,通过凝胶渗透色谱(GPC),粒径,红外光谱(IR),动态机械分析(DMA),热重分析(TGA),对柠檬烯基水性聚氨酯乳液及胶膜的性能进行了研究。研究结果表明:采用柠檬烯基扩链剂可制备出稳定的聚氨酯水分散体,并且柠檬烯基聚氨酯膜的储存模量、玻璃化转变温度(Tg)较不含柠檬烯聚氨酯膜有明显提升。Limonene-based chain extender（LDO） and limonene-based hydrophilic chain extender（LHCE） were prepared through thiol-ene reaction, using Limonene as starting raw material. The structures of the chain extenders were characterized by NMR. Then they were used to prepare the Limonene-based Waterborne Polyurethane. The structure and performance of Limonene-based Waterborne Polyurethane emulsion and films were characterized by FT-IR, Gel Permeation Chromatography（GPC）, Particle size, Dynamic thermomechanical analysis（DMA）, and thermogravimetric analysis（TGA）.The results showed that the Limonene-based chain extender and limonene-based hydrophilic chain extender can be used to prepare stable waterborne polyurethane, and it can improve the modulus and glass transition temperature（Tg） of the film.

关 键 词：柠檬烯 巯基-烯反应 聚氨酯 

分 类 号：O633.5[理学—高分子化学]