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Chemo-enzymatic synthesis of comb polymers
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- Srivastava, Rajiv (author)
- KTH,Fiber- och polymerteknologi
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- Kumar, K. (author)
- Centre for Polymer Science and Engineering, Indian Institute of Technology, Delhi
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- Varma, I. K. (author)
- Centre for Polymer Science and Engineering, Indian Institute of Technology, Delhi
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- (creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
- In: European Polymer Journal. - : Elsevier BV. - 0014-3057 .- 1873-1945. ; 43:3, s. 808-817
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The paper describes the synthesis and characterization of comb polymers by a two-step chemo-enzymatic process. In the first step macromonomers bearing unsaturation at the chain end were prepared by lipase catalyzed ring-opening polymerization (ROP) of E-caprolactone (CL) and 1,5-dioxepane-2-one (DXO). The ROP was carried out in bulk at 60 degrees C under anhydrous conditions using 2-hydroxyethyl methacrylate (HEMA) as the initiator. The DP of the macromonomers was controlled by regulating the monomer: HEMA molar feed concentration. The macromonomers were then homo- or co-polymerized in the second step with alkyl methacrylate monomers (methyl methacrylate or HEMA) using AIBN initiated free radical polymerization. Characterization of the polymers was done by H-1 NMR, SEC and DSC techniques.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- 1
- 5-Dioxepane-2-one; Comb polymers; Enzyme; Lipase-CA; Ring-opening polymerization; Copolymerization; Enzymes; Free radical polymerization; Macromolecules; Ring opening polymerization; Saturation (materials composition); Synthesis (chemical); 1
- 5-Dioxepane-2-one; 2-hydroxyethyl methacrylate (HEMA); Caprolactone (CL); Comb polymers; Lipase-CA; Macromonomers; Organic polymers
- Polymer chemistry
- Polymerkemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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