POLYMERIZATION OF ETHYLENE METHYL PHOSPHATE IN THE PRESENCE OF SODIUM POLY(ETHYLENE GLYCOL)ATE*

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POLYMERIZATION OF ETHYLENE METHYL PHOSPHATE IN THE PRESENCE OF SODIUM POLY(ETHYLENE GLYCOL)ATE*

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- POLYMERIZATION OF ETHYLENE METHYL PHOSPHATE IN THE PRESENCE OF SODIUM POLY(ETHYLENE GLYCOL)ATE*
- Vol. 17, Issue 3, Pages: 259-264(1999)
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- Published：20 June 1999
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POLYMERIZATION OF ETHYLENE METHYL PHOSPHATE IN THE PRESENCE OF SODIUM POLY(ETHYLENE GLYCOL)ATE*[J]. 1999, 17(3): 259-264.
DOI：

POLYMERIZATION OF ETHYLENE METHYL PHOSPHATE IN THE PRESENCE OF SODIUM POLY(ETHYLENE GLYCOL)ATE*[J]. 1999, 17(3): 259-264. DOI：

摘要

Poly(ethylene methyl phosphate)-poly(ethylene glycol)-poly(ethylene methyl phosphate) triblockcopolymers carrying hydroxyl group at both chain ends were synthesized with sodium poly(ethyleneglycol)ate as initiator. The effects of the factors such as solvent

amount of the initiator and reaction timewere investigated. The copolymers were characterized by IR

1H-NMR

1H{31P}-NMR

13C-NMR

31P{1H}-NMR

and DSC. High molecular weight of the copolymer and high yield of the polymerization were achieved within 3 min at 25℃.The polymerization process was studied by 31P{1H}-NMR and transesterification was found during longer polymerization time.

Abstract

amount of the initiator and reaction timewere investigated. The copolymers were characterized by IR

1H-NMR

1H{31P}-NMR

13C-NMR

31P{1H}-NMR

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