Sequential and one-pot post-polymerization modification reactions of thiolactone-containing polymer brushes

Published

August 19, 2019

Author(s)

Cassandra M. Reese, Brittany J. Thompson, Phillip K. Logan, Christopher Stafford, Derek L. Patton, Michael Blanton

Abstract

Thiolactone chemistry has garnered significant attention as a powerful post-polymerization modification (PPM) route to mutlifunctional polymeric materials. Here, we apply this versatile chemistry to the fabrication of ultrathin, multifunctional polymer surfaces via aminolysis and thiol-mediated double modifications of thiolactone-containing polymer brushes. Polymer brush surfaces were synthesized via microwave-assisted surface-initiated polymerization of DL- homocysteine thiolactone acrylamide. Aminolysis and thiol-Michael double modifications of the thiolactone-functional brush were explored using both sequential and one-pot reactions with bromobenzyl amine and 1H,1H-perfluoro-N-decyl acrylate. X-ray photoelectron spectroscopy and argon gas cluster ion sputter depth profiling enabled quantitative comparsion of the sequential and one-pot PPM routes with regard to conversion and spatial distribution of functional groups immobilized throughout thickness of the brush. While one-pot conditions proved to be more effectiive in immobilizing the amine and acrylate within the brush, the sequenital reaction enabled the fabrication of multifunctional, micropattterned brush surfaces using reactive microcontact printing.

Citation

Polymer Chemistry

Volume

10

Issue

36

Pub Type

Journals

Download Paper

https://doi.org/10.1039/c9py01123d

Local Download

Keywords

polymer brushes, post-modification, surface chemistry, chemical analysis

Citation

Reese, C. , Thompson, B. , Logan, P. , Stafford, C. , Patton, D. and Blanton, M. (2019), Sequential and one-pot post-polymerization modification reactions of thiolactone-containing polymer brushes, Polymer Chemistry, [online], https://doi.org/10.1039/c9py01123d, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928365 (Accessed December 22, 2024)