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Photocatalyzed atom transfer radical polymerization using conjugated hypercrosslinked polymer as photocatalyst

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共轭超交联聚合物催化光致原子转移自由基聚合

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Aug.2025, Vol.48 No.8: 1072-1078, 1138

DOI: 10.3969/j.issn.1003-5060.2025.08.010

Authors

YANG Guiyu, HE Tao, CHEN Zichao, FANG Weiwei, FAN Zihui

(School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: In this paper, conjugated hypercrosslinked polymer TPP-CHCP was synthesized via two-step reaction. TPP-CHCP possessed broad light absorption range (400-900 nm) and was selected as photocatalyst for photocatalyzed atom transfer radical polymerization (P-ATRP). P-ATRP of methyl acrylate (MA) and methyl methacrylate (MMA) was successfully conducted under 940 nm near-infrared light irradiation using TPP-CHCP, and the monomer conversion reached 99%. The obtained polymer had well-defined structure, controlled molecular weight and narrow molecular weight distribution ( $ D_{s}<1.18 $). TPP-CHCP showed excellent photocatalytic activity and could efficiently prepare block copolymers under sunlight irradiation.

Keywords: conjugated hypercrosslinked polymer; photocatalyzed atom transfer radical polymerization (P-ATRP); near-infrared light; sunlight; block copolymer

作者信息

杨桂宇，何涛，陈自超，方蔚伟，范子回

（合肥工业大学化学与化工学院，安徽合肥230009）

摘要和关键词

摘要: 文章通过两步反应合成共轭超交联聚合物(TPP-CHCP)。TPP-CHCP有较宽的光吸收区间(400~900 nm)，可作为光致原子转移自由基聚合(photocatalyzed atom transfer radical polymerization, P-ATRP)的光催化剂。TPP-CHCP可在940 nm近红外光照射下，驱动丙烯酸甲酯(MA)和甲基丙烯酸甲酯(MMA)的P-ATRP反应且单体转化率达到99%。所得聚合物的结构明确，分子量可控，分子量分布( $ D_{s}<1.18 $)窄。在太阳光照射条件下，TPP-CHCP依然具有优异的光催化活性，可高效制备嵌段共聚物。

关键词: 共轭超交联聚合物；光致原子转移自由基聚合(P-ATRP)；近红外光；太阳光；嵌段共聚物

Funding

国家自然科学基金资助项目（22171067）

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