On Demand Light-Degradable Polymers Based on 9,10-Dialkoxyanthracenes.,Macromolecular Rapid Communications

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On Demand Light-Degradable Polymers Based on 9,10-Dialkoxyanthracenes.
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2020-07-01 , DOI: 10.1002/marc.202000314
Fabian Becker ₁ , Marvin Klaiber ₁ , Matthias Franzreb ₁ , Stefan Bräse _{2,

3} , Joerg Lahann _{1,

4}

Affiliation

Light induced degradation of polymers has drawn increasing interest due to the need for externally controllable modulation of materials properties. However, the portfolio of polymers, that undergo precisely controllable degradation, is limited and typically requires UV light. A novel class of backbone‐degradable polymers that undergo aerobic degradation in the presence of visible light, yet remain stable against broad‐spectrum light under anaerobic conditions is reported. In this design, the polymer backbone is comprised of 9,10‐dialkoxyanthracene units that are selectively cleaved by singlet oxygen in the presence of green light as confirmed by NMR and UV/vis spectroscopy. The resulting polymers have been processed by electrohydrodynamic (EHD) co‐jetting into bicompartmental microfibers, where one hemisphere is selectively degraded on demand.

中文翻译：

基于9,10-二烷氧基蒽的按需光降解聚合物。

由于需要外部控制材料性能的调节，光诱导的聚合物降解引起了越来越多的兴趣。但是，受到精确控制的降解的聚合物种类有限，通常需要紫外线。据报道，有一类新型的可降解的主链可降解聚合物，在可见光的存在下会发生好氧降解，但在厌氧条件下仍能抵抗广谱光。在此设计中，聚合物主链由9,10-二烷氧基蒽单元组成，在NMR和UV / Vis光谱法确认的情况下，绿光存在下被单线态氧选择性裂解。生成的聚合物已通过电动流体动力学（EHD）共喷射加工成双隔室超细纤维，其中一个半球可根据需要选择性降解。

更新日期：2020-08-06

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