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The Hydrophilic to Superhydrophilic Change Induced by Polyhydroxybutyrate in Polyethylene glycol:Polyhydroxybutyrate Electrospun Samples by Plasma Treatment

Published online by Cambridge University Press:  07 June 2016

Ma Guadalupe Rojano-Molina ,
Maraolina Domínguez-Díaz ,
Horacio Martinez-Valencia ,
José Escorcia-García  and
Ruth Fabiola Balderas-Valadez
Ma Guadalupe Rojano-Molina
Affiliation:
Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa, Cuernavaca, Morelos, C.P.62209, MÉXICO
Maraolina Domínguez-Díaz*
Affiliation:
Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, Cuernavaca, Morelos, C.P.62209, MÉXICO
Horacio Martinez-Valencia
Affiliation:
Instituto de Ciencias Físicas-UNAM, Av. Universidad S/N, Col. Chamilpa, Cuernavaca, Morelos, C.P.62210, MÉXICO
José Escorcia-García
Affiliation:
CONACYT-CINVESTAV del IPN, Unidad Saltillo, Industrial, Zona Industrial, Ramos Arizpe, Coahuila, C.P. 25900, MÉXICO
Ruth Fabiola Balderas-Valadez
Affiliation:
Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, Cuernavaca, Morelos, C.P.62209, MÉXICO
*
*To whom correspondence should be addressed: mdominguez@uaem.mx
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Abstract

This work studied the effect of plasma treatment on the wettability of composite materials constituted of polyethylene glycol (PEG) and polyhydroxybutyrate (PHB) processed through the spin-coating and electrospinning techniques. For this purpose different polymeric solutions of PEG:PHB with proportions of 100:0, 80:20, 50:50, 20:80, and 0:100 were prepared. It found that the hydrophobicity of the as-prepared composite films processed by electrospinning was higher than those processed by spin-coating, using the same proportions of PEG:PHB. The electrospun samples with higher content of PHB (20:80 and 0:100) showed a surface morphology constituted by fibers of 1.7-1.9 μm in size. On the other hand, the electrospun samples processed with a lower content of PHB (100:0, 80:20, 50:50) did not form fibers and exhibited a rough surface. The subsequent plasma treatment with argon plasma of the electrospun samples produced a decrease in the contact angle, even in the samples with surface roughness. These contact angle values were similar to those obtained by spin-coating, or even lower, as in the case of the sample with PEG:PHB content of 20:80 in which the dip-coated film, the as-prepared membrane, and the plasma-treated membrane showed contact angles of 49°, 77.4°, and 0° (superhydrophilic) respectively.

Keywords

polymerfibermorphology
Type
Articles
Information
MRS Advances , Volume 1 , Issue 29: Soft Materials and Biomaterials , 2016 , pp. 2125 - 2131
Copyright
Copyright © Materials Research Society 2016 

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References

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