Abstract: In order to obtain a better hydrophobic anti-fouling surface, two diblock copol-ymers PFPES₁₃-b-IPSMA₁₁ and PFPES₁₃-b-IPSMA₄ with different IPSMA segment length were prepared by atom transfer radical polymerization(ATRP)using 2-methyl-2-propenoic acid 3-[tris(1-methylethoxy )silyl] propyl ester(IPSMA)as monomer and PFPE-Br as macromo lecular initiators synthesized from perfluoro polyether alcohol and 2-bromoisobutyryl bromide.The copolymers were used to construct glass-based hydrophobic anti fouling surface.The structures of the copolymers were characterized by 'H NMR, FTIR and GPC. The film proper-ties of two kinds of block copolymers with different IPSMA chain lengths were investigated.The influence of diluent type, HCl concentration and sample concentration on the performance of the anti-fouling surface was also studied. The results showed that the anti-fouling surface based on PFPE₁₃-b-IPSMA₄, had better performance. When the diluent was trifluoromethyl benzene, the concentration of HCl was 3. 60x10^-2 molL, and the PFPEis-b-IPSMA, concen-tration was more than 0.8 mg/mL, the prepared coating showed the optimal hydrophobic and wearable properties with a water contact angle reaching up to 105°.

Key words: perfluoro polyether, isopropoxysilyl, diblock copolymer;hydrophobicity, wearability

摘要：  

为了获得耐磨性更好的疏水防污表面，以全氟粲醚醇(PFPE-OH)和2-溴异丁酰溴制备大分子引发剂PFPE-Br，以3-[三(1-甲基乙氧基)硅基」丙基甲基内烯酸酯( IPSMA)为单体，通过原子转移自由基案合(ATRP)制备了不同 IPSMA链段长度的嵌段共聚物PFPE₁₃-b- IPSMA₁₁和PFPE₁₃-b- IPSMA₄，并利用该嵌段共聚物构筑了疏水防污涂层。联合核磁共振(HNMR)、簧胶滲透色谐(GPC)和红外光谐(FT-IR)表征了其结构。并研究了不同 PSMA链段长度的2种二元嵌段共聚物所构筑的涂层性能，以及稀释剂种类、HCl浓度、样品浓度对涂层性能的影响。结果表明:嵌段共粲物PFPE₁₃-b- IPSMA₄，构筑的涂层具有更好的性能。当稀释剂为三氟甲苯，HC浓度为1.20×10^-2 mol/L，PFPE₁₃-b- IPSMA₄浓度大于0.8mg/mL时，构筑的涂层疏水性能比较理想，水接触角达到105°，并且具有较好的耐磨性。

关键词: 全氟聚醚, 异丙氧基硅基, 二元嵌段共聚物, 疏水性, 耐磨性