Abstract

Synthesis of the fluorinated diblock copolymer nanoparticles of poly(dodecafluoroheptyl methacrylate)-b-poly(methyl methacrylate) (PDFMA-b-PMMA) by RAFT dispersion polymerization is performed in supercritical carbon dioxide. Fluorinated macro-RAFT agents were first prepared via RAFT solution polymerization and characterized by NMR and GPC. The RAFT-terminated poly(dodecafluoroheptyl methacrylate) (PDFMA) homopolymers actually act as in situ stabilizer for the subsequent synthesis of the PDFMA-b-PMMA block copolymer nanoparticles by RAFT dispersion polymerization while exhibiting good control on the well defined spherical particles formation. SEM images show that the average size of these synthesized diblock copolymer nanoparticles was 425 nm with a narrow size distribution (1.13), which are close to the literature data for conventional MMA dispersion polymerization with a fluorinated CO2-philic stabilizer in ScCO2.

Details

Title
In situ synthesis of fluorinated diblock copolymer nanoparticles via RAFT dispersion polymerization in supercritical carbon dioxide
Author
Huo, Z Y 1 ; Xia, P D 2 ; Azhar, U 1 ; Ma, J C 1 ; Zhang, X M 1 ; Zhou, X Y 1 ; Zhang, S X 1 ; Xu, A H 1 

 Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China 
 Shandong Product Quality Inspection Research Institute, Jinan 250100, China 
Publication year
2019
Publication date
Feb 2019
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2560858565
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.