What is it about?
The result shows that the synthesis method used in this study effectively controlled the formation of the polymer to obtain a low PDI. The thermosensitive block copolymer, PNIPAAm-b-PNTBA (molar ratio59:1), with LCSTs in the range 27.7–39.88C, was obtained through controlled living radical polymerization with PNIPAAm–TEMPO.
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Why is it important?
The 5 wt % aqueous solution of PNIPAAm-b-PNTBA (molar ratio59:1) had an LCST of 37.48C; this was close to body temperature, 37.8C.
Perspectives
The 5 wt % aqueous solution of PNIPAAm-b-PNTBA (molar ratio 9:1) showed potential for use in biomedical applications eg. drug releasing.
Syang-Peng Rwei
National Taipei University of Technology
Read the Original
This page is a summary of: Thermosensitive copolymer synthesized by controlled living radical polymerization: Phase behavior of diblock copolymers of poly(N-isopropyl acrylamide) families, Journal of Applied Polymer Science, December 2015, Wiley,
DOI: 10.1002/app.43224.
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