水滴模板法制备PS-<italic style="font-style: italic">b</italic>-PHEMA/Eu配合物蜂窝状多孔膜及其性能研究

刘倩; 闫春娜; 王利平; 李光

doi:10.11777/j.issn1000-3304.2018.18241

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水滴模板法制备PS-b-PHEMA/Eu配合物蜂窝状多孔膜及其性能研究

研究论文 | 更新时间：2021-01-26

- 水滴模板法制备PS-b-PHEMA/Eu配合物蜂窝状多孔膜及其性能研究
  增强出版
- Fabrication and Properties of Poly(styrene)-block-Poly(hydroxyethyl methacrylate)/Eu Complex Honeycomb Structured Porous Films via Breath Figure Method
- 高分子学报 2019年50卷第4期页码：410-418
- 作者机构：
  
  聊城大学材料科学与工程学院　聊城 252059
- 作者简介：
  
  E-mail: wangliping5@163.com
  E-mail: lglzsd@126.com
- 基金信息：
  
  山东省高等学校科技计划项目(项目号 J16LA01)、国家自然科学基金(基金号 51503094)、聊城大学大学生科技文化创新基金(基金号 26312161932，26312161927，26312161931，26312171917，26312171930)和聊城大学大学生创新训练计划项目(项目号 CXCY2017154)资助()
- DOI：10.11777/j.issn1000-3304.2018.18241
  中图分类号：
- 纸质出版日期：2019-4，
  
  网络出版日期：2018-12-28，
  
  收稿日期：2018-11-13，
  
  修回日期：2018-12-3，
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刘倩, 闫春娜, 王利平, 李光. 水滴模板法制备PS-b-PHEMA/Eu配合物蜂窝状多孔膜及其性能研究[J]. 高分子学报, 2019,50(4):410-418.

Qian Liu, Chun-na Yan, Li-ping Wang, Guang Li. Fabrication and Properties of Poly(styrene)-block-Poly(hydroxyethyl methacrylate)/Eu Complex Honeycomb Structured Porous Films via Breath Figure Method[J]. Acta Polymerica Sinica, 2019,50(4):410-418.
刘倩, 闫春娜, 王利平, 李光. 水滴模板法制备PS-b-PHEMA/Eu配合物蜂窝状多孔膜及其性能研究[J]. 高分子学报, 2019,50(4):410-418. DOI： 10.11777/j.issn1000-3304.2018.18241.

Qian Liu, Chun-na Yan, Li-ping Wang, Guang Li. Fabrication and Properties of Poly(styrene)-block-Poly(hydroxyethyl methacrylate)/Eu Complex Honeycomb Structured Porous Films via Breath Figure Method[J]. Acta Polymerica Sinica, 2019,50(4):410-418. DOI： 10.11777/j.issn1000-3304.2018.18241.

摘要

采用可逆加成-断裂链转移(RAFT)聚合法合成了一系列两亲性嵌段共聚物聚苯乙烯-

-聚甲基丙烯酸羟乙酯/Eu配合物(PS-

-PHEMA/Eu配合物)，通过凝胶渗透色谱(GPC)、傅里叶变换红外光谱(FTIR)、核磁共振氢谱(

H-NMR)和固体荧光光谱对聚合物进行了表征，并采用水滴模板法制备了PS-

-PHEMA/Eu配合物蜂窝状多孔膜. 研究了溶剂、聚合物浓度、聚合物分子量对蜂窝状多孔膜表面形貌的影响. 采用场发射扫描电子显微镜(FESEM)、能量色散X-射线能谱仪(EDX)和激光扫描共聚焦显微镜(LSCM)等研究了多孔膜的表面形貌和元素分布. 研究结果表明，溶剂、聚合物浓度、聚合物分子量均会影响多孔膜的表面形貌，沸点较低、挥发性较强且与水不互溶的有机溶剂有利于形成规整度高、孔径大小均一的多孔膜，多孔膜的平均孔径随着溶液浓度的增加和聚合物分子量的增大而逐渐减小. FESEM-EDX分析进一步证实亲水基团(Eu配合物基团)主要分布在孔壁上，这与LSCM结果一致. 多孔膜在空气中放置6个月后，原本大部分集中在孔内壁的Eu元素，出现在了膜表面，这可能是由于连接在聚合物分子链上的亲水基团随分子链的自由旋转发生了迁移.

Abstract

Amphiphilic copolymers

poly(styrene)-block-poly(hydroxyethyl methacrylate)/Eu complex (PS-

-PHEMA/Eu complex) were synthesized

via

reversible addition fragmentation chain transfer (RAFT) polymerization. The structure and composition of the amphiphilic copolymers

PS-

-PHEMA/Eu complex

were characterized by gel permeation chromatography (GPC)

Fourier transform infrared spectroscopy (FTIR)

H-nuclear magnetic resonance spectroscopy (

H-NMR) and solid-state fluorescence spectrum. The honeycomb structured porous films were fabricated by dropping the PS-

-PHEMA/Eu complex copolymer solutions onto glass substrates

via

the breath figure method. The effects of solvent

copolymer concentration

and copolymers’ molecular weight on the formation of porous films were investigated. The surface morphology and elemental mapping of the highly ordered porous films were investigated by field emission scanning electron microscopy (FESEM)

energy dispersive X-ray spectroscopy (EDX) and laser scanning confocal microscopy (LSCM). The results indicated that the solvent type

copolymer concentration

and copolymers’ molecular weight can affect the surface morphology of the honeycomb structured porous films. Organic solvents with low boiling point

high volatility

and insolubility in water are conducive to the formation of porous films with high regularity and uniform pore size. The average diameter of the pores in the porous films decreased with the increasing polymer concentration and the molecular weight of the copolymers. The FESEM-EDX analysis further verified that the hydrophilic groups (Eu complex groups) were mainly distributed at the sidewall of the pore

which was consistent with the LSCM results. It is worth mentioning that after the porous films were placed in the air for half a year

most of the Eu elements originally concentrated in the inner wall of the pore migrated to the surface of the films. This might be due to the migration of hydrophilic groups attached on the polymer chains with free rotation of the chains.

关键词

蜂窝状多孔膜水滴模板法聚苯乙烯-b-聚甲基丙烯酸羟乙酯/Eu配合物荧光标记

Keywords

Honeycomb structured porous filmsBreath figure methodPS-b-PHEMA/Eu complexFluorescence labeling

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DOI：10.11777/j.issn1000-3304.2018.18241

摘要

Abstract

关键词

Keywords

references