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

Autor: Junxian Huang, Lijun Lai, Jihua Gao, Shaojun Chen, Heng Chen
Rok vydání: 2018
Předmět:
Zdroj: Materials Letters. 225:24-27
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2018.04.066
Popis: 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.
Databáze: OpenAIRE