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Ciudad Juarez, Mexico

Rivas-Orta V.,Technological Institute of Ciudad Madero | Antonio-Cruz R.,Technological Institute of Ciudad Madero | Rivera-Armenta J.L.,Technological Institute of Ciudad Madero | Mendoza-Martinez A.,Technological Institute of Ciudad Madero | Ramirez-Mesa R.,Minatitlan Institute of Technology
E-Polymers | Year: 2010

In the last decade, the interest in physical organogels has grown rapidly with the discovery and synthesis of a very large number of diverse molecules, which used organic solvents at low concentrations. New organogels based on poly (acrylic acid) (PAA) and cellulose acetate (CA) were prepared as thin films to study properties and swelling behavior. In organogels synthesis different crosslinking agent and initiator concentrations were studied. The swelling for PAA/CA organogels was carried out with acetone at 3 different temperatures (30°, 40° and 50 °C) and pH of 6.5 (pHacetone= 6.5). The higher swelling for PAA/CA organogels was 770% for 25PAA/75CA composition ratio with 3%wt N,N'-methylene-bis acrylamide (MBA) and 1%wt potassium persulphate (KPS) at 30 °C. The films were analyzed by FTIR and the presence of functional groups of each polymer was confirmed without secondary reactions. The DSC analysis indicated two glass transition temperatures (Tg); at 106 °C corresponding to PAA and 86 °C, corresponding to CA, respectively, indicative of phase separation, characteristic of gels. Surface morphology was analyzed by Scanning electron microscopy (SEM) showing smooth surface and small crystal forms. Source


Minatitlan Institute of Technology | Entity website

Informe de Rendicion de Cuentas 2012 Informe de rendicin de cuentas 2012 Lic. Jos Carlos Daz Garca Proceso acadmico Como pionero en la regin sur del estado de Veracruz el Instituto Tecnolgico de Minatitln ha tenido un crecimiento importante dentro de la zona donde ejerce influencia de manera preponderante debido a la ubicacin y las necesidades de la regin el ITM oferta las siguientes carreras: Licenciatura en Administracin Ingeniera en Sistemas Computacionales Ingeniera Electromecnica Ingeniera Electrnica Ingeniera Qumica Ingeniera Industrial en sus modalidades escolarizada y a distancia Ingeniera Ambiental Ingeniera en Gestin Empresarial Derivado de las actividades de promocin de las carreras en los diferentes Bachilleratos de la regin, el ITM actualmente cuenta con una matrcula de 4217 estudiantes, siete de ocho programas educativos vigentes se encuentran orientados al desarrollo de competencias, a su vez el Instituto cuenta con los siguientes programas educativos acreditados: Ingeniera Qumica Ingeniera Electrnica Ingeniera Electromecnica Licenciatura en Administracin Razn por la cual el entonces Secretario de Educacin Pblica el Dr ...


Minatitlan Institute of Technology | Entity website

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Minatitlan Institute of Technology | Entity website

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Minatitlan Institute of Technology | Entity website

Instituto Tecnolgico de Minatitln Blvd. Institutos Tecnolgicos S/N Col ...

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