Copolymer Brush Particle Hybrid Materials with "Recall-and-Repair" Capability.

ABSTRACT: The effect of sequence structure on the self-healing and shape-memory properties of copolymer-tethered brush particle films was investigated and compared to linear copolymer analogs. Poly(n-butyl acrylate-co-methyl methacrylate), P(BA-co-MMA), and linear and brush analogs with controlled gradient and statistical sequence were synthesized by atom transfer radical polymerization (ATRP). The effect of sequence on self-healing in BA/MMA copolymer brush particle hybrids followed similar trends as for linear analogs. Most rapid restoration of mechanical properties was found for statistical copolymer sequence; an increase of the high T_g (MMA) component provided a path to raise the material's modulus while retaining self-heal ability. Creep testing revealed p

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC10501442 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature