Title of article
Preparation and characterization of polymer/layered silicate pharmaceutical nanobiomaterials using high clay load exfoliation processes
Author/Authors
Villaça، نويسنده , , Jaqueline Correia and da Silva، نويسنده , , Luiz Clلudio R. Pereira and Barbosa، نويسنده , , Luisa Helena Falcمo and Rodrigues، نويسنده , , Carlos Rangel and Lira، نويسنده , , Luiz Marcelo and do Carmo، نويسنده , , Flلvia Almada and de Sousa، نويسنده , , Valeria Pereira and Tavares، نويسنده , , Maria Inês Bruno and Cabral، نويسنده , , e Luc، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
8
From page
4094
To page
4101
Abstract
The purpose of this study was to prepare and characterize lamellar silicate nanocomposites using exfoliation processes, high clay load and polyvinylpyrrolidone (PVP), ethylcellulose (EC) and polyquaternium-H (PQH). The clays (sodium montmorillonite, Viscogel S4™, S7™ and B8™) were pre-treated with ultrasonic energy in order to increase clay exfoliation yields. Polymeric nanocomposites were characterized by XRPD, DSC, TGA, DLS and NMR. The results revealed a new exfoliation method and new intercalated nanocomposites. High clay load was used to obtain the nanocomposites, which enables its application at an industrial scale. These nanocomposites could be broadly applied across the pharmaceutical, medical and food industries.
Keywords
Organophilic clays , Exfoliation process , Montmorillonite , nanocomposites , layered silicates
Journal title
Journal of Industrial and Engineering Chemistry
Serial Year
2014
Journal title
Journal of Industrial and Engineering Chemistry
Record number
1712415
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