MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*

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MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*

Papers | Updated：2021-06-21

- MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*
- Vol. 17, Issue 2, Pages: 145-150(1999)
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- Published：20 April 1999
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MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*[J]. 1999, 17(2): 145-150.
DOI：

MECHANISM-TRANSFORMATION SYNTHESIS AND CHARACTERIZATION OF POLY(STYRENE-b-2-ETHYL-2-OXAZOLINE) DIBLOCK COPOLYMER*[J]. 1999, 17(2): 145-150. DOI：

摘要

By mechanism-transformation (anionic→ cationic) poly(styrene- b-2-ethyl -2-oxazoline) diblockcopolymer

PS-b-PEOx

was synthesized in two steps. The first step is the polymerization of styrene blockcapped with ethylene oxide and its tosylation; the second step is the cationic ring-opening polymerization of2-ethyl-2-oxazoline. The products were thoroughly characterized by various methods

such as 1H-NMR

DMA

TEM and SAXS. The results show that the copolymer obtained possesses high molecular weight and narrow molecular weight distributio.

Abstract

By mechanism-transformation (anionic→ cationic) poly(styrene- b-2-ethyl -2-oxazoline) diblockcopolymer

PS-b-PEOx

such as 1H-NMR

DMA

TEM and SAXS. The results show that the copolymer obtained possesses high molecular weight and narrow molecular weight distributio.

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