Installing lactone chain termini during photoinduced polymerization†,Polymer Chemistry

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Installing lactone chain termini during photoinduced polymerization†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-04-13 00:00:00 , DOI: 10.1039/c8py00457a
Andrea Lauer _{1,

2,

3,

4,

5} , Jan Steinkoenig _{1,

2,

3,

4,

5} , Philipp Jöckle _{1,

2,

3,

4,

5} , Anne-Marie Kelterer _{6,

7,

8,

9,

10} , Andreas N. Unterreiner _{11,

12,

13,

14,

15} , Christopher Barner-Kowollik _{1,

2,

3,

4,

5}

Affiliation

We exploit the Thorpe–Ingold effect as a spontaneous end group transformation method during photo-induced polymerization of methacrylates using the functional (2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone) species as radical photoinitiator. Herein, the isopropyl hydroxyl function endows the polymer with geminal methyl groups inducing an angular compression, enabling through close proximity a ring-closing reaction between the hydroxyl group and the ester motif.

中文翻译：

在光致聚合过程中安装内酯链末端†

我们利用功能性（2-羟基-4'-（2-羟基乙氧基）-2-甲基苯乙酮）自由基作为光引发剂，在甲基丙烯酸酯的光诱导聚合过程中利用Thorpe-Ingold效应作为自发端基转化方法。在此，异丙基羟基官能团赋予聚合物双甲基甲基，引起角压缩，从而通过紧密接近使得羟基和酯基序之间的闭环反应成为可能。

更新日期：2018-04-13

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