Precision sulfonic Acid ester copolymers

Kathleen L Opper; Kenneth B Wagener

doi:10.1002/marc.200900013

Precision sulfonic Acid ester copolymers

Macromol Rapid Commun. 2009 Jun 2;30(11):915-9. doi: 10.1002/marc.200900013. Epub 2009 Apr 21.

Authors

Kathleen L Opper¹, Kenneth B Wagener

Affiliation

¹ The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA.

PMID: 21706548
DOI: 10.1002/marc.200900013

Abstract

Linear ethylene copolymers containing sulfonic acid ethyl esters precisely spaced on every 21st carbon have been synthesized using metathesis polycondensation chemistry. These precision structures with one directly attached and one aromatic spaced sulfonic acid ester are synthesized with the goal of tailoring layered higher order morphologies in contrast to conventional clustered ionic polyolefins. Primary structural characterization confirms the precision polymer structures. Additional secondary microstructural analysis by DSC shows a recoverable endothermic melt transition of polyethylene-like lamellae crystallites of the directly attached ester while completely amorphous behavior is observed when the ester is spaced away from the backbone with an aromatic group.