Development of a new shape-memory polymer in the form of microspheres

作者：Huang, Junxian; Lai, Lijun; Chen, Heng; Chen, Shaojun^*; Gao, Jihua^*

来源：Materials Letters, 2018, 225(Aug.15): 24-27.

DOI：10.1016/j.matlet.2018.04.066

• Shape-memory
• Polymers
• Microspheres
• Thermo-responsive

A novel shape-memory polymer having microspherical structure was prepared with Styrene (St), butyl acrylate (BA) and divinylbenzene (DVB) as the crosslinkers. The results clearly show the formation of crosslinked poly(St-DVB-BA) polymeric microspheres with high content of DVB. Through the variation of DVB content, different microspheres are formed, each having two-phase separation structure consisting of BA soft phase and St hard phase respectively. Both the St hard phase and chemical-crosslinker provided stable netpoints for thermally induced shape-memory effects. Thus, the Poly(St-DVB-BA) microspheres show the capability of shape deformation, shape fixation and shape recovery.

• 出版日期2018-8-15
• 单位深圳大学