Surface‐initiated PET‐RAFT polymerization under metal‐free and ambient conditions using enzyme degassing,Journal of Polymer Science Part A: Polymer Chemistry

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Surface‐initiated PET‐RAFT polymerization under metal‐free and ambient conditions using enzyme degassing
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-07-16 , DOI: 10.1002/pola.29438
Soyoung E. Seo ₁ , Emre H. Discekici ₂ , Yuanyi Zhang ₃ , Christopher M. Bates _{1,

3} , Craig J. Hawker _{1,

2}

Affiliation

An open‐to‐air method for the efficient synthesis of surface‐tethered polymer brushes based on photoinduced electron transfer‐reversible addition‐fragmentation chain transfer (PET‐RAFT) polymerization is reported. Key to this approach is an enzyme‐assisted strategy using glucose oxidase to facilitate the in situ removal of oxygen during the polymerization process. Control experiments in the absence of glucose oxidase confirm the importance of enzymatic deoxygenation for successful polymerization of a variety of acrylamide, methacrylate, and acrylate monomers. In accordance with controlled polymerization kinetics, a linear increase in brush height as a function of irradiation time for a range of light intensities is demonstrated. Importantly, the use of light to mediate growth and the inherent monomer versatility of PET‐RAFT allow for the facile fabrication of well‐defined polymer brushes under aqueous conditions. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019

中文翻译：

在无金属和环境条件下使用酶脱气进行表面引发的PET-RAFT聚合

报道了一种基于光致电子转移-可逆加成-断裂链转移（PET-RAFT）聚合有效合成表面束缚聚合物刷的露天方法。该方法的关键是使用葡萄糖氧化酶的酶辅助策略，以促进原位在聚合过程中除去氧气。在不存在葡萄糖氧化酶的情况下的对照实验证实了酶促脱氧对于成功聚合各种丙烯酰胺，甲基丙烯酸酯和丙烯酸酯单体的重要性。根据受控的聚合动力学，证明了在一系列光强度下，笔刷高度随照射时间的线性增加。重要的是，使用光来调节PET-RAFT的生长以及其固有的单体多功能性可以在水性条件下轻松制造出轮廓分明的聚合物刷。©2019 Wiley Periodicals，Inc.J.Polym。科学，A部分：Polym。化学 2019年

更新日期：2019-11-18

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