含氟硅烷偶联剂低聚物的合成及性能表征  

Synthesis and Characterization of Oligomers of Fluorinated with Silane Coupling

作　　者：李锐超 桂泰江[2] 丛巍巍[2] 张盾[1,4,5] 郭丽莎[2] 王鹏 LI Ruichao;GUI Taijiang;CONG Weiwei;ZHANG Dun;GUO Lisha;WANG Peng(Key Laboratory of Marine Environmental Corrosion and Biofouling,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Marine Chemical Research Institute,Qingdao 266071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China;Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China)

机构地区：[1]中国科学院海洋研究所,海洋环境腐蚀与生物污损重点实验室,青岛266071 [2]海洋化工研究院有限公司,青岛266071 [3]中国科学院大学,北京100049 [4]中国科学院海洋大科学研究中心,青岛266071 [5]青岛海洋科学与技术国家实验室,青岛266237

出　　处：《材料导报》2021年第2期2199-2206,共8页Materials Reports

基　　金：国家自然科学基金(41576079,41924040);青岛海洋科学与技术国家实验室(QNLM2016ORP0413);青岛海洋科学与技术国家实验室鳌山人才计划(2017ASTCP-ES02)。

摘　　要：环境友好型污损释放型涂料存在静态防污效果不理想的技术瓶颈。本工作以具有代表性的硅烷偶联剂与三种不同尺度乙烯基不饱和含氟单体为原料,采用不同的聚合工艺,研究不同合成条件(反应温度、引发剂种类及用量)对聚合结果的影响规律,通过优化工艺制得数均分子量低于1000 Da且分布窄的氟硅低聚物。结合在线量热系统、拉曼光谱、红外光谱及在线红外技术分析等测试方法,分析含氟单体与硅烷偶联物的聚合过程。实验结果表明,该聚合反应通过消耗烯烃基团的自由基共聚反应获得功能低聚物,且反应放热集中于第一次滴加阶段。通过静态实海挂板测试,证明了氟硅低聚物的加入可以有效提高防污涂料的防污效果。Ecofriendly fouling release coating has limited antifouling efficiency under static conditions.In this work,a representative silane coupling agent and three different types of vinyl unsaturated fluoromonomers were used as raw materials.We studied the influence of polymerization conditions(reaction temperature,the types and application amount of initiator)on the products by varying the polymerization process and obtained copolymers with the number average molecular weight of less than 1000 Da and a narrow distribution.On-line calorimetry system,Raman spectroscopy,infrared spectroscopy,and online infrared technology were used to characterize the polymerization process.The experimental results show that the functional oligomer was obtained through the free radical copolymerization of the alkene group,and the exothermic reaction is concentra-ted in the first dripping stage.The attachment test of biofouling of sample plates in the sea proves that the addition of oligomer can effectively improve antifouling perfomance of the fouling release coating.

关 键 词：低聚物 合成 硅烷偶联剂 乙烯基不饱和含氟单体 在线红外 自由基聚合 

分 类 号：TQ633[化学工程—精细化工]