调控非共价相互作用实现聚电解质膜内多孔形成的研究

黄威嫔; 黄丹妮; 任科峰; 计剑

doi:10.11777/j.issn1000-3304.2021.21029

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调控非共价相互作用实现聚电解质膜内多孔形成的研究

研究论文 | 更新时间：2022-09-30

- 调控非共价相互作用实现聚电解质膜内多孔形成的研究
- Pore-formation through Controlling Noncovalent Interactions in Polyelectrolyte Film
- 高分子学报 2021年52卷第8期页码：978-986
- 作者机构：
  
  浙江大学高分子科学与工程学系教育部高分子合成与功能构造重点实验室杭州 310027
- 作者简介：
  
  E-mail: renkf@zju.edu.cn
  jijian@zju.edu.cn
- 基金信息：
  
  国家自然科学基金(基金号 ┣51933009);21875210┫;浙江省万人计划(2018R52001)
- DOI：10.11777/j.issn1000-3304.2021.21029
  中图分类号：
- 纸质出版日期：2021-08-20，
  
  网络出版日期：2021-05-11，
  
  收稿日期：2021-01-27，
  
  修回日期：2021-02-22，
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黄威嫔,黄丹妮,任科峰等.调控非共价相互作用实现聚电解质膜内多孔形成的研究[J].高分子学报,2021,52(08):978-986.

Huang Wei-pin,Huang Dan-ni,Ren Ke-feng,et al.Pore-formation through Controlling Noncovalent Interactions in Polyelectrolyte Film[J].ACTA POLYMERICA SINICA,2021,52(08):978-986.
黄威嫔,黄丹妮,任科峰等.调控非共价相互作用实现聚电解质膜内多孔形成的研究[J].高分子学报,2021,52(08):978-986. DOI： 10.11777/j.issn1000-3304.2021.21029.

Huang Wei-pin,Huang Dan-ni,Ren Ke-feng,et al.Pore-formation through Controlling Noncovalent Interactions in Polyelectrolyte Film[J].ACTA POLYMERICA SINICA,2021,52(08):978-986. DOI： 10.11777/j.issn1000-3304.2021.21029.

摘要

静电层状组装聚电解质膜主要由静电作用为驱动力，带有相反电荷的聚电解质在基底表面进行交替沉积制得，其结构可以通过膜内分子运动性的改变来调控. 本研究在静电作用基础上，通过在聚丙烯酸(PAA)上接枝偶氮苯基团(Azo)，得到含有2种非共价相互作用的聚乙烯亚胺/偶氮苯修饰的聚丙烯酸(PEI/PAA-Azo)膜. 利用光照和弱酸溶液对2种相互作用进行顺序调控，实现在PEI/PAA-Azo膜内区域、可逆地构建微孔结构. 进一步地，利用该体系展开了区域负载功能分子以及局部调控生物膜的形成的研究. 本研究为探究聚电解质膜内分子运动性对膜结构和动态性的影响提供了一种可行的策略，并且拓展了聚电解质膜的应用前景.

Abstract

Layer-by-layer assembly (LbL) polyelectrolyte film driven by electrostatic interaction is fabricated from alternate deposition

which has garnered broad interest all over the world in the fields of anti-bacteria

anti-fouling

separation

sensor

etc

. The mobility of polymeric chains plays a vital role in the dynamic and structural control of polyelectrolyte film. Owing to the intrinsic sensitivity of electrostatic interaction for the external environment

the mobility of polymeric chains could be adjusted

and then their structures could be dynamically tuned. However

few studies have illuminated the specific role of polyanion or polycation in these procedures. Our proposal is based on a polyelectrolyte film with azobenzene (Azo) interaction

whose structure could be dynamically and reversibly controlled under the action of ultraviolet (UV) irradiation

acid treatment

and water plasticization. Herein

azobenzene were grafted onto poly(acrylic acid) (PAA) through amidation reaction. The poly(ethyleneimine)/PAA-Azo (PEI/PAA-Azo) film

which contained two kinds of noncovalent interactions

was fabricated by the LbL technique. Porous structures were constructed in PEI/PAA-Azo film after UV irradiation in a bath of the acid solution

while the film kept solid without UV irradiation after acid treatment. Patterned porous PEI/PAA-Azo film was obtained after regional UV irradiation and acid treatment. Thanks to the reversibility of azobenzene interaction and electrostatic interaction

the patterned porous structures were constructed reversibly. Furthermore

CdSe/ZnS quantum dots were spatially encapsulated into the film to develop a pattern that was visible in UV light but invisible in visible light. Through lubricate-infusion in porous regions

a patterned anti-fouling surface was fabricated

where patterned biofilm was cultured successfully. This study presented a feasible strategy for realizing the importance of polyanion mobility for the structure and dynamics of polyelectrolyte film

and it opened a broad window for the applications (such as information storage

information security

and bacterial bioengineering) of polyelectrolyte film.

关键词

静电层状组装聚电解质膜动态结构偶氮苯微孔结构

Keywords

Layer-by-layer assemblyPolyelectrolyte filmDynamic structuresAzobenzenePorous structures

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