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 language | English |
---|---|
Pages (from-to) | 2691-2695 |
Number of pages | 5 |
Journal | Polymer Chemistry |
Volume | 4 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2013 May 7 |
ASJC Scopus subject areas
- Bioengineering
- Biochemistry
- Polymers and Plastics
- Organic Chemistry