Nanohybrids of Nylon 6 with Multi-Walled Carbon Nanotubes: Solvent-Free Polymerization of epsilon-Caprolactam Under Variable Experimental Conditions
Por:
Basiuk, EV, Solis-Gonzalez, OA, Alvarez-Zauco, E, Puente-Lee, I, Basiuk, VA
Publicada:
1 may 2009
Resumen:
The solvent-free polymerization of E-caprolactam on 1,8-diaminooctane-functionalized multi-walled carbon nanotubes (DA-MWNTs) is proposed as a simple and ecologically friendly approach to the preparation of carbon nanotubes/nylon 6 hybrid materials. The main goal of the present study was to find a minimum temperature resulting in an efficient epsilon.-caprolactam polymerization, along with the optimization of the weight ratio of DA-MWNTs to epsilon-caprolactam and reaction time. The effect of temperature was studied in the range of 170 degrees C to 210 degrees C. After the reaction at 170 degrees C, the nanotubes functionalized contained a large amount of unreacted monomer along with ca. 14% of polyamide. Increasing the reaction temperature dramatically reduced the content of E-caprolactam impurity and increased the nylon 6 content to ca. 20%. The reaction time tested was 1, 2, 4, 6 and 8 h. Exposures at less than 4 h were insufficient, where the infrared spectral bands of nylon 6 were
Filiaciones:
Basiuk, EV:
Univ Nacl Autonoma Mexico, Inst Biotecnol, Cuernavaca 62250, Morelos, Mexico
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Solis-Gonzalez, OA:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Alvarez-Zauco, E:
Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
Puente-Lee, I:
Univ Nacl Autonoma Mexico, Fac Quim, Circuito Invest Cient, Mexico City 04510, DF, Mexico
Basiuk, VA:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Inst Biotecnol, Cuernavaca 62250, Morelos, Mexico
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