Gas Transport Properties of Poly(2-ethoxyethyl methacrylate-co-2-hydroxyethyl methacrylamide)

• Published in: Macromolecules Vol. 37; no. 11; pp. 4156 - 4163
• Main Authors: Tiemblo, P, Laguna, M. F, García, F, García, J. M, Riande, E, Guzmán, J
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.06.2004
• Subjects: Applied sciences; Exact sciences and technology; Miscellaneous; Organic polymers; Physicochemistry of polymers; Properties and characterization; Crosslinked copolymer; Methacrylamide derivative copolymer; Gas permeability; Alcohol copolymer; Transport properties; Gaseous diffusion; Property composition relationship; Preparation; Methacrylate copolymer; Radical copolymerization; Experimental study; Activation energy
• ISSN: 0024-9297; 1520-5835
• DOI: 10.1021/ma049945h

A series of methacrylic copolymers was prepared by radical polymerization of the monomers 2-ethoxyethyl methacrylate and 2-hydroxyethyl methacrylamide and a small quantity of a cross-linking agent ethylene glycol dimethacrylate. Water swelling of the membranes, mechanodynamical analysis, density measurements, and ATR-FTIR studies were performed on the copolymers. High vacuum pressure techniques were used to evaluate the flow of He, O2, N2, CO2, CH4, CH3CH3, and CH2CH2 through these membranes, and solubility, diffusivity, and permeability coefficients were determined. The effect of the increase of the amount of methacrylamide in the copolymer on transport properties, glass transition, fractional free volume, cohesive energy density, and specific interactions has been studied and is reported in this work.