Synthesis of Novel H-shaped Block Copolymer by the Combination of Enzymatic-Promoting Ring-opening Polymerization and ATRP

Chem. J. Chinese Universities

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Synthesis of Novel H-shaped Block Copolymer by the Combination of Enzymatic-Promoting Ring-opening Polymerization and ATRP

WANG Di¹, ZHANG Bao¹, LI Ya-Peng¹*, SUN Jing-Hui²

1. AlanG. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China;
2. The First Hospital of Jilin University, Changchun 130023, China

Received:2007-11-12 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10
Contact: LI Ya-Peng

Abstract

Abstract: Enzymatic-promoting ring-opening polymerization(ROP) of ε-caprolactone(ε-CL) was performed in the presence of biocatalyst Novozyme-435 and initiator ethylene glycol. The resulting polymer was esterified with 2,2-Dichloro acetyl chloride(DCAC) to obtain macroinitiator, which can be used in the following ATRP of the glycidyl methacrylate(GMA) using CuCl/2,2’-bipyridine as the catalyst system to synthesize the well-defined H-shaped block copolymer(PGMA)₂-b-PCL-b-(PGMA)₂. The structure of the polymer was characterized via GPC and ¹H NMR analysis. The polydisperisty of the resulting H-shaped block copolymer is 1.32, M_n=32000. The thermal properties of block copolymer was characterized by differential scanning calorimetry.

Key words: H-shaped block copolymer, Atom transfer radical polymerization, Enzymatic-promoting ring-opening polymerization, Glycidyl methacrylate(GMA)

CLC Number:

O631

TrendMD:

WANG Di¹, ZHANG Bao¹, LI Ya-Peng¹*, SUN Jing-Hui². Synthesis of Novel H-shaped Block Copolymer by the Combination of Enzymatic-Promoting Ring-opening Polymerization and ATRP[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of Novel H-shaped Block Copolymer by the Combination of Enzymatic-Promoting Ring-opening Polymerization and ATRP

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