高分子蜂窝状多孔薄膜的制备及应用

The polymer honeycomb-patterned porous thin films have potential applications in superhydrophobic coatings, catalysis, dye-sensitized solar cells, biosensor and tissue engineering materials et al. In this item, the star polymers and amphiphilic block copolymers will be synthesized via reverse iodine transfer polymerization (RITP), atom transfer radical polymerization (ATRP) and reversible addition fragmentation chain transfer (RAFT) polymerization respectively. Subsequently, the honeycomb-patterned porous films will be fabricated through water droplet method. The relationship between the morphology of honeycomb-patterned porous thin film and the various affecting factors such as the structure of the polymer, solvent and so on will be investigated in detail, which will be significant to illuminate the formation mechanism of the honeycomb-patterned porous structure. The honeycomb-patterned porous film will be fabricated on aluminum foil surface and the bare aluminum foil in film hole will be electric eroded using the honeycomb-patterned porous film as templet. The connection between the morphology and pore structure of honeycomb-patterned porous film and the eroded hole structure of aluminum foil will be systematic researched which will provide scientific basis for preparation of high specific capacitance aluminum foil. The implementation of this item will not only provide a new way to prepare high specific capacitance aluminum foil, but also have academic significance for promoting the cross and inosculate between colloid and interface chemistry, polymer chemistry and material chemistry.

高分子蜂窝状多孔薄膜在超疏水表面、催化、染料敏化太阳能电池、生物传感器及组织工程材料等方面显示出良好的应用前景。本项目拟采用反向碘原子转移自由基聚合（RITP）、原子转移自由基聚合（ATRP）和可逆加成-断裂链转移（RAFT）自由基聚合方法分别制备星形和两亲性嵌段聚合物，采用水滴模板法构筑蜂窝状有序多孔膜，探索蜂窝状多孔薄膜的形貌与聚合物结构、溶剂等影响因素之间的关系，对阐明蜂窝状有序多孔结构的形成机制有重要意义。在铝箔上构筑蜂窝状有序多孔膜，并以其为模板，对铝箔表面膜孔内裸露的铝进行电蚀扩孔，系统的考察蜂窝状多孔薄膜的形貌和孔道结构与铝箔蚀孔结构之间的关系，为制备高比电容铝箔提供科学依据。本项目的实施不仅为制备高比电容铝箔提供了一条崭新的途径，也对促进胶体与界面化学、高分子化学、材料化学等学科的交叉融合，具有重要的学术意义。

自从法国科学家Francois将聚苯乙烯的星状聚合物或嵌段聚合物的二硫化碳溶液滴在固体基底上制备薄膜时发现在聚合物薄膜表面形成有序多孔结构以来，基于溶剂挥发的水滴模板法成为了一种引人瞩目的制备有序微结构材料的方法。高分子蜂窝状多孔薄膜在超疏水表面、催化、染料敏化太阳能电池、生物传感器及组织工程材料等方面显示出良好的应用前景。本项目采用反向碘原子转移自由基聚合（RITP）、原子转移自由基聚合（ATRP）和可逆加成-断裂链转移（RAFT）自由基聚合方法分别制备星形和两亲性嵌段聚合物，采用水滴模板法构筑蜂窝状有序多孔膜，探索蜂窝状多孔薄膜的形貌与聚合物结构、溶剂等影响因素之间的关系，对阐明蜂窝状有序多孔结构的形成机制有重要意义。..主要研究内容：..（1）成膜聚合物的合成. 合成了星形和两亲性嵌段聚合物。利用凝胶渗透色谱和核磁共振等技术，分析嵌段共聚物组成、亲疏水链段长度和比例、分子量及分子量分布。.（2）蜂窝状有序多孔膜的制备及应用.通过水滴模板法制备高分子蜂窝状多孔膜，阐明蜂窝状有序多孔膜的形成条件和机理。..重要结果:..相关结果发表在“Journal of Colloid and Interface Science 420 (2014) 112–118,和Reactive & functional polymers, Reactive and Functional Polymers 99 (2016) 59–64”等杂志上（详见见研究成果部分）。申请相关专利三项，其中已授权两项：（1）一种四臂星形聚合物蜂窝状多孔膜及制备方法，专利号：ZL201310689323.1；（2）一种光敏性无规共聚物蜂窝状多孔薄膜及制备方法，专利号：ZL201310714641.9；（3）一种六臂星形聚合物多孔膜及制备方法，申请号：201410296652.4..关键数据及其科学意义：..阐明了两亲性嵌段聚合物和星形聚合物结构对多孔膜结构的影响，另外明确了多孔薄膜的形貌结构与聚合物结构、聚合物溶液的浓度、溶剂的挥发性、相对湿度、气流速度及气流稳定性等影响因素之间的关系，阐明蜂窝状有序多孔膜的形成条件和机理，本项目的顺利实施将对促进胶体与界面化学、高分子化学、材料化学等学科的交叉融合，具有重要的学术意义.