Synthesis and morphology control of a tetra-functional epoxy/polyethylenepolyamine monolithic porous polymers aspiring to selective molecular adsorption

IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2025-01-14 DOI:10.1007/s10965-025-04254-x

Naofumi Naga, Mei Kusakabe, Tamaki Nakano

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Abstract

Ring-opening addition reactions between pentaerythritol tetra(oxiran-2-ylmethyl) ether [pentaerythritol polyglycidyl ether (PPE)] and polyethylenepolyamine, i.e., ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA), and tetraethylenepantamine (TEPA), have been investigated to yield network polymers. The reactions in ethanol under the equivalent molar ratio of epoxy and NH groups, [epoxy]/[NH] = 1.0 mol/mol, at 60 ºC successfully yielded porous polymers. The surface morphology of the porous polymers showed connected particles with the diameters ranged from bout 5 μm to 20 μm. The monomer concentration and molecular structure of the polyethylenepolyamine compound affected the particle size in the porous polymers. All the porous polymers were sufficiently soft and flexible to be unbroken under 40 N of compression. The porous polymers absorbed various solvents and showed high water permeability. The porous polymers adsorbed an anionic dye selectively. Surface treatment of a porous polymer by alkali aq. made it possible to adsorb a cationic dye.

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具有选择性分子吸附功能的四官能团环氧/聚乙烯多胺单孔聚合物的合成及形态控制

研究了季戊四醇四氧基甲基醚[季戊四醇聚甘油醚（PPE）]与聚乙烯多胺，即乙二胺（EDA）、二乙基三胺（DETA）、三乙基四胺（TETA）和四乙基苯胺（TEPA）之间的开环加成反应，得到了网状聚合物。在乙醇中，在[环氧]/[NH] = 1.0 mol/mol的环氧基当量摩尔比下，在60℃条件下反应成功地制得多孔聚合物。多孔聚合物的表面形貌显示出直径在5 ~ 20 μm之间的连通颗粒。聚乙烯多胺化合物的单体浓度和分子结构影响多孔聚合物的粒径。所有多孔聚合物都足够柔软和柔韧，在40 N的压缩下不破裂。多孔聚合物吸附多种溶剂，具有较高的透水性。多孔聚合物选择性地吸附阴离子染料。用碱水对多孔聚合物进行表面处理，使其吸附阳离子染料成为可能。

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.