Using reversibility of the dynamic covalent bond to create porosity in highly ordered polymer thin films under mild conditions and nano-pore functionalization in the gas phase

Jingyi Rao, Anzar Khan

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Phase-separating polystyrene (PS) and polyethylene glycol (PEG) polymers are connected through a hydrazone-based reversible covalent bond to afford a PS-CHN-PEG diblock copolymer. This novel dynamic covalent copolymer assembles into a nano-structured cylindrical morphology in thin films. Reversal of the hydrazone linkage and removal of PEG-hydrazide under mild conditions afford a nano-porous membrane featuring a chemically reactive functionality in the nano-pores. Availability of these reactive groups for further thin film functionalization is demonstrated by re-establishing the imine bond with a small molecule amine. This modification strategy does not require any coupling reagent, solvent, or high temperature. Therefore, a gas-phase technique is sufficient for film functionalization purposes.

Original languageEnglish
Pages (from-to)2691-2695
Number of pages5
JournalPolymer Chemistry
Volume4
Issue number9
DOIs
Publication statusPublished - 2013 May 7
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Biochemistry
  • Polymers and Plastics
  • Organic Chemistry

Fingerprint Dive into the research topics of 'Using reversibility of the dynamic covalent bond to create porosity in highly ordered polymer thin films under mild conditions and nano-pore functionalization in the gas phase'. Together they form a unique fingerprint.

  • Cite this