Preparation and characterization of clay-polymer nanocomposite having covalentlybound poly(norbornenes) with pendant cholesterols

College

College of Science

Department/Unit

Chemistry

Document Type

Article

Source Title

Materials Research

Volume

22

Issue

2

Publication Date

1-1-2019

Abstract

We have successfully prepared a clay-based polymer nanocomposite having grown cholesterol bearing poly(norbornene) brushes end-tethered from a naturally-occurring montmorillonite clay template. The synthesis of this hybrid material involved the treatment of the clay with first generation Grubbs catalyst, a ruthenium alkylidene, which induced a ring-opening metathesis and subsequent surface initiated polymerization of the cholesterol bearing monomer. This results in an inorganic/organic hybrid functional nanomaterial where the inclusion of the clay particles in a liquid crystalline domain modifies the thermal transitions. © 2019 Universidade Federal de Sao Carlos. All Rights Reserved.

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Digitial Object Identifier (DOI)

10.1590/1980-5373-MR-2018-0192

Disciplines

Chemistry

Keywords

Polymer liquid crystals; Nanocomposites (Materials)

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