Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Size effect of semiconductor quantum dots as photocatalysts for PET-RAFT polymerization

Author affiliations

Abstract

The use of semiconductor quantum dots (QDs) as photocatalysts for photo-induced electron or energy transfer (PET) reversible addition–fragmentation chain transfer (RAFT) polymerization is increasingly attractive owing to their stable photo activity and efficient charge transfer. However, previous studies in the field have not discussed the effect of the quantum size of the QDs particles, which is known to have a significant effect on the light absorption and charge transfer. Therefore, the aim of this work is to investigate PET-RAFT polymerization with different sizes of CdSe QDs. With an increase in the particle size of the QDs, the polymerization rate remarkably increased (higher apparent propagation rate constant, kappp) and the experimental molecular mass demonstrated a better fit with the theoretical values (I* = Mn,th/Mn,GPC, close to 1), indicating a more ideal control radical polymerization system with the larger QDs. Furthermore, the better controllability with larger CdSe QDs was extended to a PET-RAFT system with different irradiation lights, solvents and monomers. This work is considered to be a valuable contribution to semiconductor QD catalyst PET-RAFT polymerization.

Graphical abstract: Size effect of semiconductor quantum dots as photocatalysts for PET-RAFT polymerization

Back to tab navigation

Supplementary files

Article information


Submitted
21 Apr 2020
Accepted
20 Jun 2020
First published
30 Jun 2020

Polym. Chem., 2020, Advance Article
Article type
Communication

Size effect of semiconductor quantum dots as photocatalysts for PET-RAFT polymerization

Y. Liang, H. Ma, W. Zhang, Z. Cui, P. Fu, M. Liu, X. Qiao and X. Pang, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY00588F

Social activity

Search articles by author

Spotlight

Advertisements