Synthesis and Characterization of Oligomers of Fluorinated with Silane Coupling
LI Ruichao1,2,3,4,5, GUI Taijiang2, CONG Weiwei2, ZHANG Dun1,4,5, GUO Lisha2, WANG Peng1,4,5
1 Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology,Chinese Academy of Sciences, Qingdao 266071, China; 2 Marine Chemical Research Institute, Qingdao 266071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China; 4 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; 5 Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
Abstract: 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 1 000 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.
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