Verification of core/shell structure of poly(glycidyl methacrylate-co-divinyl benzene) microspheres
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- 作者：Jeongmin Jin (1)
Jin Young Choi (1)
Kangseok Lee (1)
Soonja Choe (1) sjchoe@inha.ac.kr - 关键词：precipitation polymerization – ; poly(GMA ; co ; DVB) – ; core/shell particle
- 刊名：Macromolecular Research
- 出版时间：May 2009
- 出版年：2009
- 期刊代码：pc362_1598-5032
- 类别：ch
- 卷：17
- 期：5
- 页码：339-345
- 数据来源：sp
摘要
The core/shell type structure of the highly crosslinked poly(glycidylmetharylate-co-divinylbenzene) microspheres prepared in the precipitation polymerization in acetonitrile was thoroughly verified by means of swelling,1H NMR, XPS, TEM and TGA measurements. In the XPS measurement, the higher the GMA content, the higher the oxygen content was observed, implying that the higher content of GMA is observed in the particle surface. The further verification of the core/shell structure of the poly(GMA-co-DVB) particles was carried out using1H NMR and TEM techniques, resulting in the poly(GMA-co-DVB) particles with the GMA rich-phase and DVB richphase. In overall, the poly(GMA-co-DVB) microspheres consist of a highly crosslinked DVB rich-phase in the core and slightly or non-crosslinked GMA rich-phase in the shell part due to the different reaction ratios between two monomers and self-crosslinking density of DVB.