董侠
Dong Xia
人物简介
系统研究杜仲胶化学改性与形状记忆功能的高分子科学家
事迹
董侠研究员团队2025年在《高分子学报》发表综述《反式-1,4-聚异戊二烯(杜仲胶)改性方法与形状记忆应用进展》，针对杜仲胶结晶度高、弹性差的缺陷，系统总结了环氧化、Alder-ene反应等化学修饰手段与硫化交联、嵌段共聚、物理共混等改性策略，梳理了各种改性方法对杜仲胶形状记忆功能和力学性能的影响规律，是该领域承前启后的权威文献。
团队指出杜仲胶熔点仅50~60℃且生物相容性良好，其形状记忆功能在伤口缝合线、医疗支架等生物医用领域及柔性器件、介电弹性体驱动等智慧医疗方向前景广阔，并提出降低制备成本、发展全生物基复合材料、实现多功能集成等未来研究重点。
重要活动 / 事件
- 2025年4月团队杜仲胶综述经科学网及《高分子学报》官方公众号专题报道
- 承接中科院化学所严瑞芳开创的杜仲胶材料工程学方向持续攻关
代表贡献
- 2025年作为通讯作者在《高分子学报》发表杜仲胶改性与形状记忆应用长篇综述(56卷5期734-753页)
- 系统总结聚合后修饰与极性单体配位聚合两条功能化杜仲胶制备路线
- 主持国家自然科学基金面上项目'牺牲键主导的形状记忆高分子微观结构构筑与性能调控'(21774135)
- 提出杜仲胶向伤口缝合线、医疗支架等生物医用及柔性器件方向发展的技术路线
Profile
A polymer scientist who systematically studies the chemical modification and shape-memory functionality of Eucommia rubber (gutta-percha).
Story
In 2025, Research Professor Dong Xia's team published in Acta Polymerica Sinica the review 'Progress in modification methods and shape-memory applications of trans-1,4-polyisoprene (Eucommia rubber)'. Addressing Eucommia rubber's drawbacks of high crystallinity and poor elasticity, the review systematically summarized chemical modification approaches such as epoxidation and Alder-ene reactions together with modification strategies including vulcanization crosslinking, block copolymerization and physical blending, and outlined the effects of various modification methods on the shape-memory function and mechanical properties of Eucommia rubber - an authoritative reference that connects past and future work in the field.
The team noted that Eucommia rubber has a melting point of only 50-60 degrees C and good biocompatibility, and that its shape-memory function holds broad prospects in biomedical fields such as wound sutures and medical stents, as well as in smart medical directions such as flexible devices and dielectric elastomer actuation. They proposed future research priorities including reducing preparation costs, developing all-bio-based composites, and achieving multifunctional integration.
Milestones
- In April 2025, the team's Eucommia rubber review was featured in special coverage by ScienceNet.cn and the official WeChat account of Acta Polymerica Sinica
- Continues to advance the Eucommia rubber materials engineering direction pioneered by Yan Ruifang at the Institute of Chemistry, CAS
Key Contributions
- In 2025, published as corresponding author a full-length review on Eucommia rubber modification and shape-memory applications in Acta Polymerica Sinica (Vol. 56, No. 5, pp. 734-753)
- Systematically summarized two routes for preparing functionalized Eucommia rubber: post-polymerization modification and coordination polymerization with polar monomers
- Led the National Natural Science Foundation of China general project 'Microstructural construction and performance regulation of shape-memory polymers dominated by sacrificial bonds' (21774135)
- Proposed a technical roadmap for developing Eucommia rubber toward biomedical applications such as wound sutures and medical stents, as well as flexible devices
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