Solution structure of a modified comb-like polymer from octadecyl methacrylate and acrylic acid

A water soluble comb-like polymer from the statistical copolymer of acrylic acid and octadecyl methacrylate has been accomplished through transesterification reaction with methoxy poly(ethylene glycol) of molecular weight 5000. The high non-polar characteristics of microdomains as suggested from an...

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Bibliographic Details
Published in:Chemical physics letters 2001-11, Vol.348 (5), p.395-402
Main Authors: Joseph Milton Gaspar, L, Baskar, Geetha, Baran Mandal, Asit
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Solution and gel properties
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Summary:A water soluble comb-like polymer from the statistical copolymer of acrylic acid and octadecyl methacrylate has been accomplished through transesterification reaction with methoxy poly(ethylene glycol) of molecular weight 5000. The high non-polar characteristics of microdomains as suggested from an higher I 3/ I 1 emission intensity ratio of pyrene, and a very high aggregation number of 821±4, demonstrate that PEO grafts play a significant role in promoting the hydrophobic association process in aqueous medium. A very low intrinsic viscosity (29 ml/g) and the linear variation of η sp/ c with c demonstrate formation of aggregated structures in compact coil conformation.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(01)01100-9