中国组织工程研究Issue(47)：7677-7682,6.DOI:10.3969/j.issn.2095-4344.2014.47.024
形状记忆聚合物特性及在生物医学领域应用中的优势
Properties and biomedical applications of shape memory polymers
摘要
Abstract
BACKGROUND:Shape memory polymer is a new type of functional material. The applications of shape memory polymers in the biomedical field have increasingly been paid close attention. OBJECTIVE: To summarize the characteristics and applications of shape memory polymers. METHODS: SpringerLink and China Journal Ful text Database were searched for articles related to shape memory polymers. RESULTS AND CONCLUSION: As a new type of inteligence material, shape memory polymers have lots of advantages compared with shape memory aloy and shape memory ceramics, such as low density, light weight, low cost, high shape-recovery rate, easy to regulate the shape memory temperature, to dye, to shape and to be stimulated under expected switch temperature. Especialy for polyurethane, the structure-property relationships are extremely easy to control, the shape memory temperature can be set in a wide range from-30℃ to 70℃, and it has the biocompatibility. Due to these, shape memory polymers have great potentials in applications of biomedical engineering. But the comprehensive properties of the developed shape memory polymers are not satisfactory. For example, the polynorbornene has big recovery stress, fast recovery velocity and high recovery precision, but its relative molecular mass is very big, the molecularchain is long, and processing is difficult. Furthermore, most of shape memory polymers have smal recovery stress, slow recovery velocity, low recovery precision and unsatisfied repeat memory effect. The key problems for shape memory polymers include optimization of the function of shape memory and improvement of the comprehensive properties based on the technologies of molecular design and material modification.关键词
生物材料/骨生物材料/形状记忆聚合物材料/性能/发展历程/医学领域/应用/国家自然科学基金Key words
polymers/biomedical engineering/review分类
医药卫生引用本文复制引用
朱文超,崔海坡,郭丹一,许彦坤..形状记忆聚合物特性及在生物医学领域应用中的优势[J].中国组织工程研究,2014,(47):7677-7682,6.基金项目
国家自然科学基金资助项目(51305268)；上海市大学生创新基金资助项目(201210252118) （51305268）
