Study on the synthesis of fluoro-modified chiral helical polyisocyanides by post-modification and their properties

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Feb.2026, Vol.49 No.2: 237-241, 247

DOI: 10.3969/j.issn.1003-5060.2026.02.015

Authors

CHENG Yu $ ^{1,2} $, ZHOU Li $ ^{1,2} $, WU Yongjie $ ^{1,2} $

(1. School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: In this work, the chiral macromolecular initiator poly- $ 1_{50} $ was used to initiate the copolymerization of chiral monomer 1 and chiral monomer 2, generating copolymer poly( $ 1_{50}-1_{50}/2_{n} $) with active ester modification on the pendants, and then the hydroxy-modified fluorescent molecules 3a, 3b, and 3c were reacted with poly( $ 1_{50}-1_{50}/2_{n} $) by post-modification. The chiral helical poly( $ 1_{50}-1_{50}/3_{n} $) modified with different fluorescence groups can be obtained. The structures of the polymers were characterized by $ ^{1}H $ nuclear magnetic resonance( $ ^{1}H $ NMR) and $ ^{19}F $ nuclear magnetic resonance( $ ^{19}F $ NMR), etc. The optical properties of the polymers were characterized by circular dichroism(CD), fluorescence spectrum and circularly polarized luminescence (CPL) spectrum. It is found that polymer poly( $ 1_{50}-1_{50}/3_{n} $) is a type of polymer material with CPL effect.

Keywords: polyisocyanides; fluorescent materials; chiral polymers; post-modification; circularly polarized luminescence(CPL) materials

作者信息

程煜 $ ^{1,2} $，周丽 $ ^{1,2} $，吴永杰 $ ^{1,2} $

(1. 合肥工业大学化学与化工学院, 安徽合肥 230009; 2. 合肥工业大学先进催化材料与反应工程安徽省重点实验室, 安徽合肥 230009)

摘要和关键词

摘要: 文章使用手性大分子引发剂 poly-1 $ _{50} $ 引发手性单体 1 与非手性单体 2 共聚得到侧基有活泼酯修饰的共聚物 poly(1 $ _{50} $-1 $ _{50} $/2 $ _{n} $)，采用后修饰的方法将羟基修饰的荧光分子 3a、3b、3c 与 poly(1 $ _{50} $-1 $ _{50} $/2 $ _{n} $) 进行酯交换反应，即可得到不同荧光基团修饰的手性螺旋聚异腈 poly(1 $ _{50} $-1 $ _{50} $/3 $ _{n} $)。通过核磁共振氢谱（ $ ^{1} $H nuclear magnetic resonance， $ ^{1} $H NMR）、氟核磁共振谱（ $ ^{19} $F nuclear magnetic resonance， $ ^{19} $F NMR）等手段对聚合物的结构进行表征，使用圆二色光谱（circular dichroism，CD）、荧光光谱及圆偏振发光（circularly polarized luminescence，CPL）光谱对聚合物的光学性质进行表征，发现共聚物 poly(1 $ _{50} $-1 $ _{50} $/3 $ _{n} $) 为一类具有 CPL 效应的高分子材料。

关键词: 聚异腈；荧光材料；手性聚合物；后修饰；圆偏振发光(CPL)材料

Funding

国家自然科学基金资助项目（52273204）；中央高校基本科研业务费专项资金资助项目（PA2021GDSK0064）

合肥工业大学学报(自然科学版)

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