Effect of nanodiamond additives on the structure and gas‐transport properties of a poly(phenylene-isophtalamide) matrix

0488529 - ÚMCH 2019 RIV US eng J - Journal Article
Avagimova, N. - Polotskaya, G. - Toikka, A. - Pulyalina, A. - Morávková, Zuzana - Trchová, Miroslava - Pientka, Zbyněk
Effect of nanodiamond additives on the structure and gas‐transport properties of a poly(phenylene-isophtalamide) matrix.
Journal of Applied Polymer Science. Roč. 135, č. 23 (2018), s. 1-8, č. článku 46320. ISSN 0021-8995. E-ISSN 1097-4628
R&D Projects: GA TA ČR(CZ) TH01030475
Institutional support: RVO:61389013
Keywords : polymer membranes * gas transport * nanodiamonds
OECD category: Polymer science
Impact factor: 2.188, year: 2018

Nanodiamonds (NDs) are specific carbon nanoparticles approximately 5 nm in diameter with a large and accessible surface containing functional groups. Poly(phenylene-isophtalamide) (PA)-ND composites were prepared by solid‐phase dispersal and used for dense film formation. The PA-ND composites were analyzed by Fourier transform infrared spectroscopy. The membrane structure was determined on the basis of density measurement and morphological study by atomic force microscopy. The gas‐transport properties were measured over a wide range of temperatures from 30 to 100 °C for the following series of penetrants: H2, N2, O2, and CO2. The experimental data of gas permeability were compared with the permeability values calculated from Maxwell's model. Data on the permeability and diffusion coefficients were used to calculate the activation energies.
Permanent Link: http://hdl.handle.net/11104/0283176