Carboxyl-Terminated Polybutadiene–Poly(styrene-co-4-vinylpyridine) Supramolecular Thermoplastic Elastomers and Their Shape Memory Behavior

• DOI: 10.1021/acs.macromol.6b01785
• Publication Date: 2016-09-22T14:06:36Z
• Authors: Fang Xie; Chongwen Huang; Fei Wang; Longnan Huang; R. A. Weiss; Jinsong Leng; Yanju Liu
• Keywords: Thermoplastic elastomer

Aiming at an easy-processing metallo-supramolecular polymer which possesses the shape memory property and large deformation ability, we designed a simple metal coordination complex: blends of zinc-neutralized carboxyl-terminated polybutadiene poly(styrene-co-4-vinylpyridine) (PSVP). The two polymers are tightly bound due to interactions between Zn2+ ions from pyridine group PSVP. elastomer had reasonably good mechanical properties was thermoplastic. Improvements in were realized rheology analysis compared with blend without introduction zinc salt. Small-angle X-ray scattering characterization showed that microstructure elastomeric consisted microphase-separated glassy nanodomains principally PSVP, served as cross-link junctions connected chains. exhibited for deformations, its recovery efficiency could reach 81% first cycle 97% ± 1% following seven cycles.