Synthesis by plasma of potentially biodegradable oxidized polyethylene obtained from ethanol
- PDF / 1,409,309 Bytes
- 11 Pages / 439.37 x 666.142 pts Page_size
- 93 Downloads / 151 Views
Synthesis by plasma of potentially biodegradable oxidized polyethylene obtained from ethanol Edgar O. Pérez‑Gómez1,2 · Guillermo J. Cruz1 · Genoveva García‑Rosales2 · Karla Serafín‑Díaz1,2 · Ma. del Rosario Mejía1,3 · Maribel González‑Torres1,4 · Lidia Ma. Gómez1,2 · Laura Alvarez‑Mejía1 · Ma. Guadalupe Olayo1 Received: 17 April 2019 / Revised: 29 October 2019 / Accepted: 10 December 2019 © Springer-Verlag GmbH Germany, part of Springer Nature 2019
Abstract A synthesis by plasma of polymers with structure of oxidized ethylene (PPEO) obtained from ethanol is presented in this work with the objective to obtain hydro‑ philic and potentially biodegradable PPEO films. The synthesis was carried with rf glow discharges in the 20–120 W interval obtaining films with a 0.38 μm/W grow‑ ing rate thickness. Morphology, chemical structure, hydrophilicity and absorption of electromagnetic energy in the UV–visible interval were analyzed. The results indicated that PPEO has smooth surfaces with particles and/or folded areas with water contact angles between 72° and 97°, in the limit between hydrophilicity and hydrophobicity. The structural chemical analysis showed the presence of C–H and O–H bonds characteristic of the monomer, and C=O and ≈C≈ groups characteris‑ tics of plasma polymers with dehydrogenation and formation of multiple bonds. The absorption of electromagnetic energy of PPEO was more intense in the UV than in the visible wavelength interval. These characteristics indicate that PPEO can be bio‑ degradable under the sunlight and/or under wet environments. Keywords Oxidized polyethylene · Plasma · Hydrophilicity
* Ma. Guadalupe Olayo [email protected] 1
Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México‑Toluca, km 36.5, 52750 Ocoyoacac, EdMx, Mexico
2
División de estudio de posgrado e investigación, Tecnológico Nacional de México/Instituto Tecnológico de Toluca, Av. Tecnológico s/n, col. La Virgen, 52140 Metepec, EdMx, Mexico
3
Facultad de Ingeniería, Universidad Autónoma del Estado de México Cerro de Coatepec, s/n Ciudad Universitaria, 50130 Toluca, EdMx, Mexico
4
División de Ingeniería Industrial, Tecnológico de Estudios Superiores de Tianguistenco, Carr. Tenango‑La Marquesa km 22, 52650 Tianguistenco, EdMx, Mexico
13
Vol.:(0123456789)
Polymer Bulletin
Introduction Polyethylene oxide (PEO) is a biodegradable and a water-soluble polymer that can have many industrial uses related with those of polyethylene (PE), with the advan‑ tage of biodegradability, and other uses related with biomedical applications [1–6]. It is possible to obtain PEO from ethylene (CH2=CH2) transforming double to sin‑ gle bonds with subsequent oxidation, which is generally superficial: CH2 =CH2 → Polymerization → −CH2 −CH2 −CH2 −CH2 − → Oxidation → −CH2 −CHO−CH2 −CH2 − Ethylene
Polyethylene
Oxidized Polyethylene
Another alternative presented in this work is the polymerization of ethanol (CH3–CH2–OH) by plasma, which would produce polyethanol or PE with simple oxidation, which woul
Data Loading...
