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Mesophases in a Gel from Hydroxypropyl Cellulose/Polyacrylamide

Authors

  • Carlos Castro-Guerrero,

    1. División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Ciudad Madero, J. Urueta y J. Rosas s/n, Col. Los Mangos, 89440, Cd. Madero, Tamaulipas, Mexico
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  • Ana Morales-Cepeda,

    Corresponding author
    1. División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Ciudad Madero, J. Urueta y J. Rosas s/n, Col. Los Mangos, 89440, Cd. Madero, Tamaulipas, Mexico
    • División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Ciudad Madero, J. Urueta y J. Rosas s/n, Col. Los Mangos, 89440, Cd. Madero, Tamaulipas, Mexico.
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  • Oxana Kharissova,

    1. Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, Av. Universidad s/n. Ciudad Universitaria, 66451, San Nicolás de los Garza, Nuevo León, Mexico
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  • Andreas Koschella,

    1. Friedrich-Schiller-Universität Jena, Institut für Organische Chemie und Makromolekulare Chemie, Kompetenzzentrum Polysaccharidforschung, Humboldtstrasse 10, 07743, Jena, Germany
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  • Thomas Heinze

    1. Friedrich-Schiller-Universität Jena, Institut für Organische Chemie und Makromolekulare Chemie, Kompetenzzentrum Polysaccharidforschung, Humboldtstrasse 10, 07743, Jena, Germany
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Abstract

The objective of the present work is to analyze the different mesophases observed in a gel synthesized from hydroxypropyl cellulose (HPC) and polyacrylamide (PAAm) and its phase behavior in water. Hydroxypropyl cellulose is a material derived from cellulose it is non toxic and degradable. HPC is widely used in pharmaceutics, food additives, stabilizer, thickener, etc., HPC is approved by the FDA for use in the food industry. HPC has the characteristic that it forms liquid crystals, depending on the solvent and on the concentration of the polymer. In this work a lower critical solution temperature (LCST) and an upper critical solution temperature (UCST) were observed, the resulting gel showed anisotropic, nematic and cholesteric phases in water, the phase formed depended on the concentration of the polymer.

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