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Journal of Macromolecular Science, Part A
Pure and Applied Chemistry
Volume 39, 2002 - Issue 10
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Original Articles

CHEMO-ENZYMATIC SYNTHESIS AND CHARACTERIZATION OF NOVEL FUNCTIONALIZED AMPHIPHILIC POLYMERS

Rajesh Kumar Department of Chemistry, Institute for Nano Science and Engineering Technology, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.; Department of Chemistry and Physics, Center for Advanced Materials, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.
,
Najam A. Shakil Department of Chemistry, University of Delhi, Delhi, 110 007, India
,
Ming-H. Chen Department of Chemistry, Institute for Nano Science and Engineering Technology, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.
,
Virinder S. Parmar Department of Chemistry, Institute for Nano Science and Engineering Technology, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.; Department of Chemistry, University of Delhi, Delhi, 110 007, India
,
Lynne A. Samuelson U.S. Army Soldier & Biological Chemical Command, Natick Soldier Center, Kansas Street, Natick, MA, 01760, U.S.A.
,
Jayant Kumar Department of Chemistry and Physics, Center for Advanced Materials, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.Correspondence[email protected]
&
Arthur C. Watterson Department of Chemistry, Institute for Nano Science and Engineering Technology, University of Massachusetts—Lowell, Lowell, MA, 01854, U.S.A.
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Pages 1137-1149 | Published online: 07 Feb 2007
 
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ABSTRACT

The condensation copolymerization of Dimethyl 5-hydroxyisophthalate (1) with Polyethylene glycols (PEGs) (2a–2d) of varying molecular weights, catalyzed by Novozyme-435 (immobilized Candida antarctica lipase B) in bulk is reported. The structures of the resulting polymers, Poly[(poly(oxyethylene)-oxy-5-hydroxyisophthaloyl] (3a–3c) were characterized by 1H (1D and 2D) and 13C-NMR spectroscopic experiments. Further, these polymers have been derivatized by attaching decanyl and 12-hydroxydodecanyl chains to the phenolic hydroxyl group. The resulting amphiphilic polymeric systems were characterized by detailed spectroscopic analysis. Light Scattering Photometry as well as Gel Per meation Chromatography were used to evaluate the particle size and molecular weights of the polymers. In principle, the method developed is flexible so that it can be used to generate a wide array of functionalized amphiphilic polymers. In the absence of biocatalytic transformation, such structural control would be extremely difficult or currently impossible to obtain.

Acknowledgments

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