Issue 27, 2022

A facile approach for the preparation of poly(benzothiophene-alt-maleic anhydride) microspheres by self-stabilized precipitation polymerization

Abstract

Benzothiophene is an under-explored monomer for free radical polymerization. Here we report the preparation of poly(benzothiophene-alt-maleic anhydride) (PBTMA) microspheres with high yield by self-stabilized precipitation polymerization. The chemical structure of the PBTMA copolymer was characterized by 1H-NMR, 13C-NMR, FT-IR and MALDI-TOF MS analyses. The effects of various reaction parameters, including the reaction medium, the monomer concentration, the initiator concentration and the reaction time, on the morphology, particle size and molecular weight (Mn) of the resultant PBTMA microspheres were investigated systematically. The experimental results demonstrated that the PBTMA copolymer was an alternating copolymer, whose composition was independent of the monomer composition. Uniform PBTMA microspheres with the diameter in the range of 400 nm to 3000 nm and Mn up to 12 000 g mol−1 were easily prepared. PBTMA had good solubility in common polar organic solvents and possessed much higher thermal stability than other maleic anhydride copolymers. PBTMA also showed interesting fluorescence properties both in the solid state and in solution. This research has laid the foundation for the further development of PBTMA copolymers as a new material.

Graphical abstract: A facile approach for the preparation of poly(benzothiophene-alt-maleic anhydride) microspheres by self-stabilized precipitation polymerization

Supplementary files

Article information

Article type
Paper
Submitted
30 May 2022
Accepted
16 Jun 2022
First published
17 Jun 2022

Polym. Chem., 2022,13, 4054-4063

A facile approach for the preparation of poly(benzothiophene-alt-maleic anhydride) microspheres by self-stabilized precipitation polymerization

T. Chang, H. Qi, C. Liang, Y. Huang and W. Yang, Polym. Chem., 2022, 13, 4054 DOI: 10.1039/D2PY00693F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements