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Author Shi, Huangying ♦ Chen, Wenjuan ♦ Zhang, Liming
Source SpringerLink
Content type Text
Publisher Higher Education Press
File Format PDF
Copyright Year ©2007
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences
Subject Keyword intelligent polymers ♦ polysaccharide derivative ♦ thermosensitive behavior ♦ phase transition ♦ Industrial Chemistry/Chemical Engineering
Abstract New graft copolymers were synthesized by grafting N-vinylcaprolactam onto dextran. Their composition and structure were investigated by elemental analyses, infrared spectra and thermogravimetric analyses. By optical transmittance measurements, it was found that the aqueous solutions of these graft copolymers showed a temperature-dependent transmittance change due to the introduction of thermosensitive poly(N-vinylcaprolactam) graft chains. Moreover, the lower critical solution temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentration. The LCST value was found to increase with the increase of the grafting extent and decrease with the increase of the copolymer concentration. With these stimuli-response properties, such polysaccharide derivative may hold potential applications in biomedicine and biotechnology.
ISSN 16737369
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-01-01
Publisher Institution Chinese Universities
Publisher Place Beijing
e-ISSN 16737474
Journal Frontiers of Chemical Engineering in China
Volume Number 1
Issue Number 1
Page Count 4
Starting Page 72
Ending Page 75


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Source: SpringerLink