Perfluorinated polymer colloids: controlling the size, shape, and surface charge

Stephen M Budy; S Suresh; Stephen H Foulger; Dennis W Smith Jr

doi:10.1016/j.jcis.2012.01.001

Perfluorinated polymer colloids: controlling the size, shape, and surface charge

J Colloid Interface Sci. 2012 Apr 1;371(1):42-5. doi: 10.1016/j.jcis.2012.01.001. Epub 2012 Jan 24.

Authors

Stephen M Budy¹, S Suresh, Stephen H Foulger, Dennis W Smith Jr

Affiliation

¹ Department of Chemistry, Clemson University, Clemson, SC 29634, United States. sbudy@email.arizona.edu

PMID: 22304931
DOI: 10.1016/j.jcis.2012.01.001

Abstract

The first report of perfluorocyclobutyl (PFCB) aryl ether polymer colloids is presented herein. The biphenyl rings were post-functionalized with chlorosulfonic acid modification in the backbone of the perfluoropolymer, thereby changing the zeta potential (ζ) of the colloids across the pH range (2-12). Self-assembly of the colloids was observed by scanning electron microscopy (SEM) on four separate surfaces which led to different morphological changes for each surface; spherical on Al substrate, clover-like on Cr substrate, flower-like on carbon substrate, and "squalloid" on Si substrate.