双亲环氧树脂基荧光形状记忆薄膜的构筑
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TQ317

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国家自然科学基金项目


Preparation of Amphiphilic Epoxy Resin-based Fluorescent Shape Memory Polymer Film
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    摘要:

    以聚乙二醇单甲醚为亲水段,双酚A型环氧树脂为疏水段,异氟尔酮二异氰酸酯为链接剂制备了含环氧基的双亲性大分子WEG,该双亲性大分子与荧光剂(3-(9-咔唑基)苯甲酸)、双酚A型环氧树脂E51在选择性溶剂(水)中共组装形成水性乳液。该乳液与改性胺类固化剂以一定比例混合并于室温固化后,制备了具光致发光(荧光)功能的形状记忆高分子薄膜,采用FTIR、NMR、GPC、纳米粒度仪、荧光光谱仪和DSC等对WEG、乳液和薄膜的结构和性能进行了表征。结果表明,乳液具有较好的粒径稳定性。荧光形状记忆薄膜具有较好的光致发光功能,可在刺激响应条件下(如热)快速(7 s)恢复其原始形状,形状回复率可达94.3%。

    Abstract:

    With mPEG as hydrophilic segment, epoxy resin as hydrophobic segment and isoflurone diisocyanate as the linker, the amphiphilic macromolecule WEG which contains the epoxy group was prepared. The amphiphilic macromolecule WEG is able to co-assemble with fluorescer and epoxy resin E51 in a selective solvent (water) to form a water-based emulsion. The emulsion mixed with modified amine curing agent in a certain proportion and followed by crosslinking at room temperature can build shape memory polymer materials with photoluminescence (fluorescence) function. The structures and properties of WEG, emulsion and film were characterized by FTIR, NMR, GPC, nanometer particle size analyzer, fluorescence spectrometer and DSC. The results showed that the emulsion has good particle size stability. The shape memory polymer film has good photoluminescence function and can be restored to the original shape rapidly upon heating, and the shape recovery degree can go up to 94.3%.

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海春杰,宋雨方,林娜,李兰,张洪吉,东为富.双亲环氧树脂基荧光形状记忆薄膜的构筑[J].精细化工,2020,37(5):

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  • 收稿日期:2019-09-20
  • 最后修改日期:2020-01-14
  • 录用日期:2020-01-15
  • 在线发布日期: 2020-03-23
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