SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph3P)2 PdCl2

LI Yinkui; Chen Zhaohui

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SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph3P)2 PdCl2

Papers | Updated：2021-06-21

- SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph3P)2 PdCl2
- Vol. 11, Issue 1, Pages: 38-45(1993)
- Affiliations：
  
  1. Department of Materials Science and Applied Chemistry, Changsha Institute of Technology,Changsha,410003
  2. Changsha Institute of Technology
  3. Changsha 410003
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 March 1993
- Accepted：
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[1]李银奎,陈朝辉.SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph_3P)_2 PdCl_2[J].Chinese Journal of Polymer Science,1993(01):38-45.

LI Yinkui, Chen Zhaohui. SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph3P)2 PdCl2[J]. 1993, 11(1): 38-45.
[1]李银奎,陈朝辉.SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph_3P)_2 PdCl_2[J].Chinese Journal of Polymer Science,1993(01):38-45. DOI：

LI Yinkui, Chen Zhaohui. SYNTHESIS OF THE COPOLYMERS OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVE S INITIATED BY (Ph3P)2 PdCl2[J]. 1993, 11(1): 38-45. DOI：

摘要

正

The copolymerization of p-diethynylbenzene （PDEB） with phenylacetylene （PhA）

4’-diethynylbiphenyl （DEBP）or m-diethynylbenzene （MDEB） are studied by varying mole ratios of monomers. When the mole ratios of PDEB/PhA are less or equal to 1/5

the copolymers are soluble and fusible

but the other copolymers are insoluble and infusible. The results show that the good solvent of cross-linked copolymers is benzene and their solubility parameter is 9.15 cal

0.5

.cm（-1.5）. And their swellability （θ

）

Huggins parameter （χ）

density (d

) and the average molecular weights between crosslinks （c） are measured. It is found that θp and c of copolymers are greater but d

is less than that of respective homopolymers. IR spectra show that the copolymers have transoid configuration and small number of unreacted ethynyl groups exist in the copolymers. The mechanism about the polymerization or acetylenic derivatives initiated by （Ph

P）

PdCl

is discussed.

Abstract

The copolymerization of p-diethynylbenzene （PDEB） with phenylacetylene （PhA）

4’-diethynylbiphenyl （DEBP）or m-diethynylbenzene （MDEB） are studied by varying mole ratios of monomers. When the mole ratios of PDEB/PhA are less or equal to 1/5

the copolymers are soluble and fusible

but the other copolymers are insoluble and infusible. The results show that the good solvent of cross-linked copolymers is benzene and their solubility parameter is 9.15 cal

0.5

.cm（-1.5）. And their swellability （θ

）

Huggins parameter （χ）

density (d

) and the average molecular weights between crosslinks （c） are measured. It is found that θp and c of copolymers are greater but d

P）

PdCl

is discussed.

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