Morphology Evolution during Stretching Investigated by in situ SAXS of Hybrids with Ceramic Nanoparticles Selectively Incorporated into a Highly Available Block Copolymer as a Model Material for Wearables
Source abstract
Abstract
Polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene-grafted maleic anhydride (SEBS-MA), a highly available block copolymer (BCP), was employed as a template to selectively guide the incorporation of aluminosilicate nanoparticles (NPs). To this end, hybrids with different amounts of sol–gel NPs in SEBS-MA were prepared by solvent casting. Results indicated that NPs could react with maleic anhydride-derived species in SEBS-MA to lead to cross-links in the EB block. Furthermore, the incorporation of NPs up to 15 wt % led to hybrids with enhanced strength and strain at break. In situ SAXS analysis during stretching showed that the lamellar phase was severely damaged upon stretching. Moreover, high contents of NPs led to morphologies with coarse particles ejected from the BCP lamellar structure. The overall result indicates that highly available BCP elastomers can be used as a platform for the design of hybrids with well-distributed NPs and enhanced properties useful for wearables.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Polymer Nanocomposites and Properties · Dielectric materials and actuators · Block Copolymer Self-Assembly
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais (UFMG), Av. Antônio Carlos, 6627, Belo Horizonte, MG 31270-901, Brazil
Department of Mechanical Engineering, Pontifícia Universidade Católica de Minas Gerais (PUC Minas), Belo Horizonte, MG 30535-901, Brazil
Funding
Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais · Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico · Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
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