Synthesis of ordered, functional, robust nanoporous membranes from liquid crystalline brush-like triblock copolymers†,Polymer Chemistry

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Synthesis of ordered, functional, robust nanoporous membranes from liquid crystalline brush-like triblock copolymers†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-02-28 00:00:00 , DOI: 10.1039/c7py02127e
Dennis Ndaya _{1,

2,

3,

4} , Reuben Bosire _{1,

2,

3,

4} , Lalit Mahajan _{2,

3,

4,

5,

6} , Scarlet Huh _{1,

2,

3,

4} , Rajeswari Kasi _{1,

2,

3,

4,

5}

Affiliation

The fabrication of mechanically robust nanoporous polymeric membrane materials with aligned, accessible functionalized nanopores is extremely important for many applications. We report a general and modular synthesis, structure/morphology and properties of nanoporous membranes from norbornene backbone based triblock copolymers containing functionalized amine monomers in the central block, and side-chain liquid crystalline and side-chain polylactide end blocks. The composition, sequence of monomer addition, overall molecular weight, norbornene backbone and thiol–ene crosslinking chemistries are chosen and optimized to produce functional and easily aligned pores within the membrane. These membranes are shown to retain their morphology before and after crosslinking as well as hydrolysis of polylactide side chains. The functional groups on the pores are shown to be chemically accessible as evidenced by spectroscopic techniques and subjecting the membranes to the uptake of arsenate ions as a model application.

中文翻译：

由液晶刷状三嵌段共聚物合成有序，功能性，坚固的纳米多孔膜†

具有对准的，可接近的官能化纳米孔的机械坚固的纳米多孔聚合物膜材料的制造对于许多应用而言极为重要。我们报告了从降冰片烯骨架为基础的三嵌段共聚物，其中包含在中央嵌段，侧链液晶和侧链聚丙交酯末端嵌段的基于降冰片烯主链的三嵌段共聚物的一般和模块化合成，结构/形态和性能的纳米多孔膜。选择和优化组成，单体添加顺序，总分子量，降冰片烯主链和硫醇-烯交联化学，以在膜内产生功能性且易于排列的孔。显示这些膜在交联以及聚丙交酯侧链水解之前和之后保持其形态。

更新日期：2018-02-28

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