水溶液室温自干成膜制备荧光形状记忆高分子材料
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国家自然科学基金项目(面上项目,重点项目,重大项目)


Preparation of fluorescent shape memory polymer materials by self-crossing emulsion at room temperature
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The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    以甲基丙烯酸甲酯(MMA),丙烯酸丁酯(BA),双丙酮丙烯酰胺(DAAM),丙烯酸(AA)为主要原料制备了聚丙烯酸酯双亲性大分子(MBDA共聚物),该双亲性大分子与荧光素(FM)在水中可以共组装形成水性荧光高分子乳液(MBDA/FM共组装乳液)。该乳液与己二酸二酰肼(ADH)均匀混合并于室温干燥固化后,即可得具有荧光功能的形状记忆高分子材料(MBDA/FM-ADH膜),其在防伪、装饰、荧光探针等领域具有潜在的应用前景。这一通过室温自交联乳液制备功能性形状记忆高分子材料的方法,具有工艺过程简单、绿色环保、可控性好,适于大规模生产的特点。此外,对MBDA共聚物、MBDA/FM共组装乳液和MBDA/FM-ADH膜的结构和性能进行了系列表征,结果表明:共组装乳液的粒径在100~200nm之间,荧光强度一定范围内依赖于荧光素的添加量;薄膜在紫外灯下发出均匀的绿色荧光,荧光发射峰值波长514nm,且在T≥ 70 ℃(Tg=31.9℃)时的形状回复~100%,具荧光和形状记忆双重功能。

    Abstract:

    An polyacrylate amphiphilic macromolecule (MBDA copolymer) was prepared using methyl methacrylate (MMA), butyl Acrylate (BA), acrylic acid (AA) and diacetone acrylamide (DAAM). The amphiphilic macromolecule was able to co-assemble with fluorescein in water to form water-based fluorescent emulsion (MBDA/FM co-assembled emulsion). The fluorescent shape memory material (MBDA/FM-ADH film) was obtained by mixing with adipic acid dihydrazide (ADH) and curing at room temperature, which can get a wide range of potential applications in the field of anti-counterfeiting, decoration and fluorescent probes. The method for preparing functional shape memory material by self-crosslinking emulsion at room temperature has the features of simple process, friend-environment, good controllability and suitable for large-scale production. The results showed that the particle size of the co-assembled emulsions remained at 100~200nm and the fluorescence intensity of emulsions increased with the amount of fluorescein within a certain range. The films which have dual functions of fluorescence and shape memory emitted uniform green fluorescence under ultraviolet light (em=514nm) and can recovery almost 100% under T≥ 70 ℃ (Tg=31.9 ℃).

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林娜,边江海,宋雨方,俞其洪,张洪吉.水溶液室温自干成膜制备荧光形状记忆高分子材料[J].精细化工,2021,38(6):0

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  • 收稿日期:2020-10-10
  • 最后修改日期:2020-12-07
  • 录用日期:2020-12-08
  • 在线发布日期: 2021-04-07
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