Affiliation:
1. School of Emergent Soft Matter Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices South China University of Technology Guangdong Guangzhou 510640 P. R. China
Abstract
AbstractCopolymerization provides an effective approach to tune the photophysical properties of non‐conventional luminescent polymers (NCLPs). In this study, the controlling of intrinsic emissions of polyacrylonitrile (PAN) copolymers is revealed by a delicate difference of secondary monomers. The introduction of methacrylate comonomers can induce a 70‐nm red‐shifting in the PL emission of copolymers compared with that of acrylate‐containing copolymers. The mechanism of such “copolymerization induced red‐shifting” in PAN copolymers is investigated. It is demonstrated that the presence of the α‐methyl group in the copolymers can enhance the chain rigidity and through‐space conjugation (TSC) of C≡N groups, resulting in the red‐shifting of emission.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
Materials Chemistry,Polymers and Plastics,Organic Chemistry