Chemo-enzymatic synthesis of comb polymers

QC 20100818
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.

NATURVETENSKAP Kemi Polymerkemi hsv//swe
NATURAL SCIENCES Chemical Sciences Polymer Chemistry hsv//eng
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

Kumar, K.Centre for Polymer Science and Engineering, Indian Institute of Technology, Delhi (författare)
Varma, I. K.Centre for Polymer Science and Engineering, Indian Institute of Technology, Delhi (författare)
Albertsson, Ann-ChristineKTH,Fiber- och polymerteknologi(Swepub:kth)u1mpsp3u (författare)
KTHFiber- och polymerteknologi (creator_code:org_t)

Av författaren/redakt...: Srivastava, Raji ...; Kumar, K.; Varma, I. K.; Albertsson, Ann- ...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.