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首页> 外文期刊>Journal of Polymer Science, Part A. Polymer Chemistry >Surface Patterned Graft Copolymerization of Hydrophilic Monomers onto Hydrophobic Polymer Film Upon UV Irradiation
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Surface Patterned Graft Copolymerization of Hydrophilic Monomers onto Hydrophobic Polymer Film Upon UV Irradiation

机译：紫外线照射下亲水单体在疏水聚合物膜上的表面图案化接枝共聚

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摘要

A random copolymer [p(MMA/DMAB)] composed of methyl methacrylate (MMA) and 2,2-dimethoxy-1,2-di(4-methacryloyloxy) phenylethane-1-one (DMAB), which can simultaneously act as a photoradical initiator and crosslinkable monomer, was prepared by free radical random copolymerization. A hydrophobic film on quartz glass was prepared using p(MMA/DMAB) by a spin-coating technique. Hydrophilic methacrylic acid (MA) and 2-methacryloyloxyethyl phosphorylcholine (MPC) were graft-copolymerized from the hydrophobic p(MMA/DMAB) film in water by photo-cleavage of the DMAB unit. The graft copolymer of MA and MPC was characterized by infrared and X-ray photoelectron spectroscopies and contact angle measurements. To confirm that MPC can be grafted onto the surface of the film selectively at only UV-irradiated sites, photoinduced graft copolymerization of MPC using a photomask was performed to prepare a pMPC patterned p(MMA/DMAB) film. The film was stained using a rhodamine 6G dye that can absorb specifically to pMPC to confirm the pMPC pattern. The p(MMA/DMAB) film can be applied to various fields including photolithography and biomedical applications, because the film surface properties can be controlled using various vinyl monomers selectively on UV-irradiated sites. (C) 2014 Wiley Periodicals, Inc.
机译：由甲基丙烯酸甲酯（MMA）和2,2-二甲氧基-1,2-二（4-甲基丙烯酰氧基）苯基乙烷-1-酮（DMAB）组成的无规共聚物[p（MMA / DMAB）]通过自由基无规共聚制备光自由基引发剂和可交联单体。使用p（MMA / DMAB）通过旋涂技术在石英玻璃上制备疏水膜。通过DMAB单元的光裂解，从水中的疏水性p（MMA / DMAB）薄膜接枝共聚了亲水性甲基丙烯酸（MA）和2-甲基丙烯酰氧基乙基磷酰胆碱（MPC）。 MA和MPC的接枝共聚物通过红外和X射线光电子能谱和接触角测量来表征。为了确认MPC仅可以在紫外线照射的位置选择性地接枝到薄膜表面，进行了使用光掩模的MPC的光诱导接枝共聚反应，制备了pMPC图案化的p（MMA / DMAB）薄膜。该膜用若丹明6G染料染色，该染料可以特异性吸收pMPC以确认pMPC模式。 p（MMA / DMAB）薄膜可以应用于包括光刻和生物医学应用在内的各个领域，因为可以通过选择性地在紫外线照射的位置上使用各种乙烯基单体来控制薄膜的表面性能。 （C）2014威利期刊公司

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