PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION

杨新林; 黄文强

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PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION

Papers | Updated：2021-06-21

- PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION
- PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION
- 高分子科学（英文版） 2007年第3期页码：303-309
- Affiliations：
  
  1.   Key Laboratory of Functional Polymer Materials the Ministry of Education
  2.   Institute of Polymer Chemistry
  3.   Nankai University
  4.   Tianjin 300071
  5.   China
- Author bio：
- Funds：
  
  This work was supported in part by the National Science Foundation of China（No.20504015）();the starting project for young teachers from the Ministry of Education, China.()
- DOI：
  中图分类号： TQ316.33
- 纸质出版：2007
- Accepted：
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[1]杨新林,黄文强.PREPARATION OF POLY(ETHYLENEGLYCOL-co-ACRYLIC ACID) MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION[J].Chinese Journal of Polymer Science,2007(03):303-309.

PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION[J]. 2007, (3): 303-309.
[1]杨新林,黄文强.PREPARATION OF POLY(ETHYLENEGLYCOL-co-ACRYLIC ACID) MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION[J].Chinese Journal of Polymer Science,2007(03):303-309. DOI：

PREPARATION OF POLY（ETHYLENEGLYCOL-co-ACRYLIC ACID） MICROSPHERES WITH DIVINYLBENZNE AS CROSSLINKER BY DISTILLATION-PRECIPITATION POLYMERIZATION[J]. 2007, (3): 303-309. DOI：

摘要

<正>Monodisperse poly（poly（ethyleneglycol） methyl ether acrylate-co-acrylic acid）（poly（PEGMA-co-AA）） microspheres were prepared by distillation-precipitation polymerization with divinylbenzene （DVB） as crosslinker with 2

2’-azobisisobutyronitrile （AIBN） as initiator in neat acetonitrile without stirring. Under various reaction conditions

four distinct morphologies including the sol

microemulsion

microgels and microspheres were formed during the distillation of the solvent from the reaction system. A 2D morphological map was established as a function of crosslinker concentration and the polar monomer AA concentration

in comonomer feed in the transition between the morphology domains. The effect of the covalent crosslinker DVB on the morphology of the polymer network was investigated in detail at AA fraction of 40 vol%. The ratios of acid to ethylene oxide units presenting in the comonomers dramatically affected the polymer-polymer interaction and hence the morphology of the resultant polymer network. The covalent crosslinking by DVB and the hydrogen bonding crosslinking between two acid units as well as between the acid and ethylene oxide unit played key roles in the formation of monodisperse polymer microspheres.

Abstract

Monodisperse poly（poly（ethyleneglycol） methyl ether acrylate-co-acrylic acid）（poly（PEGMA-co-AA）） microspheres were prepared by distillation-precipitation polymerization with divinylbenzene （DVB） as crosslinker with 2

2’-azobisisobutyronitrile （AIBN） as initiator in neat acetonitrile without stirring. Under various reaction conditions

four distinct morphologies including the sol

microemulsion

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