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课题组2018-2019年研究进展

2018-2019年,课题组围绕柔性光电功能材料与器件开展研究工作,取得以下主要研究进展。

(1)基于“刚柔并济”二元协同网络结构,发展了兼具可拉伸性、导电性、温敏性的导电凝胶材料,突破了现有导电凝胶伸长率极限,实现了导电凝胶的超长拉伸性(1130%)和多功能性。

(2)在大分子交联的凝胶网络中引入离子液体构筑离子液体凝胶,将离子液体凝胶的拉伸性提高到850%,实现了凝胶材料在宽温度范围内(-18 oC-90 oC)的机械柔韧性和导电性。

(3)采用常见的高分子,如聚乙烯醇(PVA)、聚丙烯酸钠(PAANa)为原料,通过简单的冻融处理和Tb3+负载,构筑了全物理交联凝胶网络,实现了兼具发光性、导电性、可回收性的多功能凝胶材料。

(4)通过在凝胶网络中引入功能性高分子微球、有机纳米增强相或功能性组分,构筑了高强度复合凝胶、自愈合复合凝胶和可逆粘附凝胶等离子导电凝胶材料。

相关研究成果为改善柔性电子材料的可拉伸性,拓展柔性电子器件的功能及应用领域提供了理论依据和技术支撑。相关研究成果在ACS Applied Materials & Interfaces、Journal of Materials Chemistry C等期刊发表,得到国家自然科学基金、陕西省科技厅重大基础研究计划、陕西省自然科学基础研究计划面上项目的支持。来自十多个国家,高分子材料、柔性电子、聚合物电子等多个领域的院士、专家、学者在Chemical Society Reviews、Advanced Materials、Chem等国际顶级期刊对相关研究工作给予肯定并引用。

发表的主要研究论文:

[1] Zhiwen Wang, Hongwei Zhou,* Weixing Chen, Qiuzhao Li, Bo Yan, Xilang Jin,* Aijie Ma, Hanbin Liu,* and Weifeng Zhao, Dually Synergetic Network Hydrogels with Integrated Mechanical Stretchability,Thermal Responsiveness and Electrical Conductivity for Strain Sensors and Temperature Alertors, ACS Applied Materials & Interfaces 2018, 10, 14045-14054.

[2] Jialiang Lai, Hongwei Zhou,* Zhaoyang Jin, Shuangli Li, Hanbin Liu, Xilang Jin,* Chunyan Luo, Aijie Ma, and Weixing Chen, Highly Stretchable, Fatigue-Resistant, Electrically Conductive, and Temperature-Tolerant Ionogels for High-Performance Flexible Sensors, ACS Applied Materials & Interfaces 2019, 11, 26412-26420.

[3] Zhiwen Wang, Hongwei Zhou,* Jialiang Lai, Bo Yan, Hanbin Liu, Xilang Jin,* Aijie Ma, Gai Zhang, Weifeng Zhao, Weixing Chen,* Extremely stretchable and electrically conductive hydrogels with dually synergistic networks for wearable strain sensors, Journal of Materials Chemistry C, 2018, 6, 9200-9207.

[4] Jialiang Lai, Hongwei Zhou,* Mingcheng Wang, Yaokun Chen, Zhaoyang Jin, Shuangli Li, Jingjing Yang, Xilang Jin,* Hanbin Liu,* Weifeng Zhao, Recyclable, stretchable and conductive double network hydrogels towards flexible strain sensors, Journal of Materials Chemistry C 2018, 6, 13316-13324.

[5] Weixing Chen, Zhiwen Wang, Qiuzhao Li, Xilang Jin, Hanbin Liu,* Hongwei Zhou,* Hollow Polyaniline Microsphere Functionalized Paper with Multimodal Sensitivity to Strain, Humidity, and Pressure, ACS Applied Electronic Materials 2020, 2, 247-253.

[6] Hongwei Zhou, Mingsen Chen, Yuanli Liu,* and Si Wu,* Stimuli-Responsive Ruthenium-Containing Polymers, Macromolecular Rapid Communications 2018, 39,1800372.

[7] Hongwei Zhou,* Bo Yan, Jialiang Lai, Hanbin Liu, Aijie Ma, Weixing Chen,Xilang Jin,* Weifeng Zhao, Gai Zhang, Renewable Biomass Derived Hierarchically PorouCarbonaceous Sponges and Their Magnetic Nanocomposites for Removal of Organic Molecules from Water, Journal of Industrial and Engineering Chemistry 2018, 58, 334-342.

[8] Hongwei Zhou,* Shuangli Li, Hanbin Liu, Bohui Zheng, Xilang Jin,* Aijie Ma, and Weixing Chen. High-Performance Flexible Sensors of Self-Healing, Reversibly Adhesive, and Stretchable Hydrogels for Monitoring Large and Subtle Strains. Macromolecular Materials and Engineering 2020, 305, 1900621.

[9] Hongwei Zhou,* Zhaoyang Jin, Ying Yuan, Gai Zhang, Weifeng Zhao, Xilang Jin,* Aijie Ma, Hanbin Liu,* Weixing Chen, Self-repairing flexible strain sensors based on nanocomposite hydrogels for whole-body monitoring, Colloids and Surfaces A 2020, 592, 124587.

[10] Hongwei Zhou,* Mingcheng Wang, Weifeng Zhao, Lin Chen, Hanbin Liu, Xilang Jin,* Aijie Ma, Gai Zhang, Danlie Jiang, and Weixing Chen, Supramolecularly Mediated Robust, Anti-Fatigue, and Strain-Sensitive Macromolecular Microsphere Composite Hydrogels, Macromolecular Materials & Engineering 2020, DOI: 10.1002/mame.202000080.


专利申请:

[1] 周宏伟,赖佳亮,金洗郎,陈卫星,具有可逆粘附和自愈合性能的抗冻有机-水凝胶制备方法,2020年4月,中国,CN202010279695.7;

[2] 周宏伟,杜浩田,金洗郎,陈卫星,一种可降解、高导电MXene复合薄膜的静电纺丝制备方法,2020年4月,中国,CN202010293189.3。

[3] 周宏伟,李秋曌,王志文,金洗郎,陈卫星,一种基于导电高分子空心微球的多级结构纸基柔性传感器,2019年8月,中国,CN201910728986.7;

[4] 周宏伟,王志文,金洗郎,陈卫星,一种自交联导电聚合物微球复合水凝胶薄膜及其制备方法,2019年7月,中国,CN201910664837.9.


感谢各位的帮助和支持!

感谢国家自然科学青年基金(No. 51603164)、陕西省普通高校青年杰出人才计划,陕西省科技厅重大基础研究计划(2017ZDJC-22)、陕西省自然科学基础研究计划(2019JM-124, 2016JQ5036)、陕西省高校科协青年人才托举计划项目(No. 20170706)对本工作的资助。