Regenerable‐Catalyst‐Aided, Opened to Air and Sunlight‐Driven “CuAAC&ATRP” Concurrent Reaction for Sequence‐Controlled Copolymer,Macromolecular Rapid Communications

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Regenerable‐Catalyst‐Aided, Opened to Air and Sunlight‐Driven “CuAAC&ATRP” Concurrent Reaction for Sequence‐Controlled Copolymer
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-10-10 , DOI: 10.1002/marc.201700511
Weidong Zhang _{1,

2} , Wentao Xue ₁ , Wen Ming ₁ , Yuyan Weng ₁ , Gaojian Chen _{1,

2} , David M. Haddleton ₃

Affiliation

An ideal stimuli‐responsive controlled/living radical polymerization should have the ability to manipulate the reaction through spatiotemporal “on/off” controls, achieving the polymerization under fully open conditions and allowing for precise control over macromolecular architecture with defined molecular weights and monomer sequence. In this contribution, the photo (sunlight)‐induced electron transfer atom transfer radical‐polymerization (PET‐ATRP) can be realized to be reversibly activated and deactivated under fully open conditions utilizing one‐component copper(II) thioxanthone carboxylate as multifunctional photocatalyst and oxygen scavenger. The polymerization behaviors are investigated, presenting controlled features with first‐order kinetics and linear relationships between molecular weights and monomer conversions. More importantly, “CuAAC&ATRP” concurrent reaction combining PET‐ATRP, photodriven deoxygenation, and photoactivated CuAAC click reaction is successfully employed to synthesize the sequence‐defined multiblock functional copolymers, in which the iterative monomer additions can be easily manipulated under fully open conditions.

中文翻译：

可再生催化剂的辅助，对空气开放和阳光驱动的“ CuAAC＆ATRP”并发反应，用于顺序控制的共聚物

理想的刺激响应控制/活性自由基聚合应具有通过时空“开/关”控制来操纵反应的能力，在完全开放的条件下实现聚合，并能够精确控制具有确定的分子量和单体序列的大分子结构。在这一贡献中，可以实现光（日光）诱导的电子转移原子转移自由基聚合（PET-ATRP）在完全开放的条件下可逆活化和失活，该过程使用单组分噻吨酮铜羧酸盐作为多功能光催化剂和除氧剂。研究了聚合行为，表现出具有一阶动力学的受控特征以及分子量和单体转化率之间的线性关系。更重要的是，

更新日期：2017-10-10

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