响应释药形状记忆聚合物在原竹中的构建及其防腐和防裂协效机理

原竹以其独特的地位、风格和文化内涵成为乡村振兴和城市建设中备受关注的特色建材。但是，腐朽和开裂互作造成的加速劣化成为原竹在建筑领域应用中急需攻克的共性难题。项目拟将响应释药形状记忆聚合物（RSMP）构建于原竹中，实现防腐和防裂协同增效。利用RSMP对腐朽微环境pH值的响应特性，实现精准释药和高效防腐；同时，借助其热致变形-冷却回复的形状记忆功能，抑制原竹干缩和内应力过大造成的开裂。.项目将调节RSMP中软、硬段和pH响应段的组成，控制其结构，实现抑制原竹干缩的同时响应微环境pH值而释药。在掌握原竹中原位构建RSMP的基本规律和调控机理、攻克受限空间的引发活性和聚合可控等关键技术的基础上，进一步探索RSMP对原竹防腐和防裂的协效机理，为同时解决原竹腐朽和开裂两大难题提供理论依据和创新思路。项目的实施将有力推动以原竹建筑为特色，集文化、生态、经济和社会效益为一体的美丽乡村和特色城镇快速发展。

Attributed to its important status, unique style and rich cultural connotation, raw bamboo has become a promising building material which attracts much concern in rural revitalization and urban construction. However, the accelerated deterioration of raw bamboo caused by the mutual impact between decay and cracking has become a common problem that needs to be solved when raw bamboo is used in the field of architecture. In this project, a responsive drug release shape memory polymer (RSMP) will be constructed in raw bamboo to restrain decay and cracking synergistically. The response of RSMP to the pH value of the fungal attacked microenvironment will be used to realize targeted drug release and effective decay resistance. In addition, with the help of its shape memory characteristics in the transition from heat-induced deformation to cooling recovery, the cracking arising from shrinking of bamboo, as well as the excessive internal stress will be inhibited..By adjusting the composition of the hard segment, soft segment and the pH responsive chain, along with the control of the structure and property of polymer, bamboo shrinking will be effectively restrained, and at the same time, the drug will be released in response to the pH value of bamboo microenvironment. After mastering the basic law and regulation mechanism of in-situ construction of RSMP in raw bamboo, as well as achieving both the high efficiency of initiating and controllability of polymerization, the synergistic mechanism of RSMP in resisting both decay and cracking will be further explored, which will provide theoretical basis and novel methods for solving both decay and cracking problems simultaneously. The implementation of the project will strongly promote the application of raw bamboo architecture in the construction of beautiful villages and characteristic towns which featured with integrated cultural, ecological, economic and social benefits.