Jump to main content
Jump to site search

Issue 23, 2014
Previous Article Next Article

A simple approach to preparation of polyhedral oligomeric silsesquioxane crosslinked poly(styrene-b-butadiene-b-styrene) elastomers with a unique micro-morphology via UV-induced thiol–ene reaction

Author affiliations

Abstract

We report an approach to the fabrication of nanostructured thermoplastic elastomeric composites based on poly(styrene-b-butadiene-b-styrene) (SBS) crosslinked by polyhedral oligomeric silsesquioxane (POSS). The crosslinking reaction took place between thiol functional groups from the POSS molecules and the double bonds within the soft block segment of SBS via UV-induced thiol–ene reaction. Unlike typical methods of constructing SBS composite systems, the triblock copolymer was directly used to produce SBS based composite materials with different loadings of POSS without any pre-chemical modification. In this system, the existence of covalent bonds between the inorganic nano-material (POSS) and the polymer matrix (SBS) promoted the compatibility of the composite material and POSS formed the cross-linking centers for the SBS. AFM measurements showed that good compatibility led the composite films to form well-ordered micro-phase separation at the nanoscale, and incorporation of POSS could effectively improve mechanical properties of SBS, including the storage modulus and strength without residual elongation in the cyclic tensile tests at very small loading.

Graphical abstract: A simple approach to preparation of polyhedral oligomeric silsesquioxane crosslinked poly(styrene-b-butadiene-b-styrene) elastomers with a unique micro-morphology via UV-induced thiol–ene reaction

Back to tab navigation

Supplementary files

Article information


Submitted
04 Jun 2014
Accepted
07 Aug 2014
First published
26 Aug 2014

Polym. Chem., 2014,5, 6761-6769
Article type
Paper

A simple approach to preparation of polyhedral oligomeric silsesquioxane crosslinked poly(styrene-b-butadiene-b-styrene) elastomers with a unique micro-morphology via UV-induced thiol–ene reaction

J. Bai, Z. Shi, J. Yin and M. Tian, Polym. Chem., 2014, 5, 6761
DOI: 10.1039/C4PY00780H

Social activity

Search articles by author

Spotlight

Advertisements