Abstract
Ionic polymer prepared from acid–base interaction between methanesulfonic acid (MSA) and poly(4-vinylpyridine) (P4VP) or poly(styrene- co-4-vinylpyridine) (PS-P4VP) was served as dispersant for the emulsion polymerization of aniline. Dependent on the dispersants (as P4VP(MSA) or PS-P4VP(MSA)) used, the maximum amounts of polyaniline incorporated without premature precipitation during polymerization are different. A 3 wt.% of aniline in relative to P4VP(MSA) dispersant resulted in precipitation during polymerization; however, the aniline/PS-P4VP(MSA) ratio can reach 10 wt.% without the undesired precipitation if PS-P4VP(MSA) was used as dispersant. The inner PS block in PS-P4VP(MSA) can serve as a stabilizer to prevent the expansion of the outer P4VP(MSA) block and provided a more stable micelle system as compared with the aniline/P4VP(MSA) system. Spherical particles of different sizes were observed in products of low polyaniline contents (<3 wt.%). With increasing polyaniline contents, the conductive polyaniline phases tended to aggregated and separated from the dispersant matrix.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
