随着化石资源的日趋枯竭及环保需求，以天然可再生资源合成或改性高分子材料越来越受到重视。本项目以我国特色林产资源松香为原料，利用加成、还原、酯化、胺化等化学反应，合成松香树脂酸衍生物活性单体，进一步通过钠缩合反应、催化加成反应、胺化反应等合成方法制备松香基有机硅烷功能性单体。采用化学接枝法，制备侧链含有松香基结构单元的聚硅氧烷；以松香基有机硅烷功能性单体与硅烷单体通过催化缩合反应制备主链及侧链含有松香基结构单元的聚硅氧烷。以含有松香基结构单元的聚硅氧烷设计合成硅橡胶，利用差示扫描量热（DSC）、热重分析（TG）、动态热机械分析（DMA）、扫描电镜（SEM）、原子力显微镜（AFM）、X射线光电子能谱（XPS） 等对其硫化行为、微观结构、热学性能及机械性能等进行研究，探索松香基硅橡胶分子构型对其性能的影响机制。为创新生物质基有机硅橡胶的开发提供理论指导，同时也为松香的高值化利用开辟新的途径。

With petroleum resources gradually exhausted and the demand for environmental protection, the development and utilization of renewable resources as one of the frontiers in polymer science has attracted more and more attention. In this project, rosin-based reactive monomers will be prepared with rosin of distinctive forestry resource by addition, reduction, esterification, amination and other chemical reactions. Furthermore, rosin-based silane functional monomers will be synthesized by sodium condensation reaction, catalyzed addition reaction, amination reaction and so on. Polysiloxane with side chain containing rosin structure will be prepared by chemical grafting. Meanwhile, polysiloxane with both main chain and side chain containing rosin structure will be also prepared from rosin-based silane functional monomers and other silane monomers by catalyzed condensation reaction. Novel silicone rubber modified by rosin will be synthesized from polysiloxane containing rosin structure. The performances of novel silicone rubber, including curing behavior, microstructure, thermal property and mechanical property will be investigated by means of Differential Scanning Calorimetry (DSC), Thermal Gravimetric Analysis (TG), Dynamic Mechanical Analysis (DMA), Scanning Electron Microscope (SEM), Atomic Force Microscopy (AFM), X-ray Photoelectron Spectroscopy (XPS) and other analysis instruments. Effects of polymer chains configuration containing rosin structure on the properties of silicone rubber will be studied. This project can provide theoretical guidance for the development and innovation of biomass-based silicone rubber, as well as open up a new way for the high value utilization of rosin.