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  • Photoresponsive surface molecularly imprinted poly(ether sulfone) microfibers.

Photoresponsive surface molecularly imprinted poly(ether sulfone) microfibers.

Langmuir : the ACS journal of surfaces and colloids (2012-08-17)
Dongsheng Wang, Xiaoxue Zhang, Shengqiang Nie, Weifeng Zhao, Yi Lu, Shudong Sun, Changsheng Zhao
ABSTRACT

In the present study, photoresponsive surface molecularly imprinted poly(ether sulfone) microfibers are prepared via nitration reaction, the wet-spinning technique, surface nitro reduction reaction, and surface diazotation reaction for the selectively photoregulated uptake and release of 4-hydrobenzoic acid. The prepared molecularly imprinted microfibers show selective binding to 4-HA under irradiation at 450 nm and release under irradiation at 365 nm. The simple, convenient, effective, and productive method for the preparation of azo-containing photoresponsive material is also applied to the modification of polysulfone and poly(ether ether ketone). All three benzene-ring-containing polymers show significant photoresponsibility after the azo modification.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Poly(oxy-1,4-phenylenesulfonyl-1,4-phenylene), melt index 6 g/10 min (380°C/2.16 kg)
Sigma-Aldrich
Poly(oxy-1,4-phenylenesulfonyl-1,4-phenylene), pellets