Photochemical modification of the lower critical solution temperature of cinnamoylated poly(N-2-hydroxypropylmethacrylamide) in water
(2000) Macromolecular Rapid Communications — Vol. 21, n° 13, p. 937-940 (2000)
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- Abstract
- Partial modification of the nonionic polymer poly(N-2-hydroxy-propylmethacrylamide) by cinnamate produces stimuli-responsive copolymers. The hydrophobic character of the cinnamate chromophore induces not only a lower critical solution temperature (LCST) in water, but renders additionally the polymers photoresponsive. For moderate cinnamate contents of 9 mol-%, the photoisomerization of the trans-cinnamate to cis-cinnamate groups allows to switch the LCST by irradiation, whereas for higher cinnamate contents of 21 mol-%, irradiation leads to intra- and intermolecular photocrosslinking.
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Laschewsky, A., & Rekai, E. (2000). Photochemical modification of the lower critical solution temperature of cinnamoylated poly(N-2-hydroxypropylmethacrylamide) in water. Macromolecular Rapid Communications, 21(13), 937-940. https://doi.org/10.1002/1521-3927(20000801)21:13<937::AID-MARC937>3.0.CO;2-9 (Original work published 2000)