%0 Journal Article
%@ 0001-6659; 1587-1495
%A  Illyés Ferenc
%A  Blum Anita
%A  Csányi Erzsébet
%A  Fehér András
%A  Stane Srcic
%A  Erős István
%A Gyógyszertechnológiai Intézet SZTE / GYTK GYTI [2000-2016],
%D 2005
%F publicatio:30812
%J ACTA PHARMACEUTICA HUNGARICA
%N 3
%P 115-123
%T Makromolekulás gélek szerkezetének vizsgálata I. A folyásgörbék elemzése [Investigation of structure of macromoleculare gels, I. Analysis of flow curves]
%U http://publicatio.bibl.u-szeged.hu/30812/
%V 75
%X Six polymers with different structure were investigated. The polymers studied were as follows: methylcellulose, hydroxyethylcellulose, carboxymethylcellulose sodium, polyacrylate sodium-polyacrylamid copolymer (Hostacerin PN 73), poly(vinylpyrrolidone)-poly(vinylacetate) copolymer (Kollidon VA 64) and poly(ethylenoxide)-poly(propylenoxide) blockpolymer. Physical networks from polymers in aqueous media were prepared. The flow curves of these systems were determined. Polynoms, multiplicative functions and linear ones were fitted to the flow curves. The close packing was characterised by correlation coefficient. Physical content of function constants was delineated. Practically the constants expressing the binding forces has a great importance. It was established, that the binding forces in cellulose derivates gels and that of acrylic acid-acrylamide polymer gels are similar. Other structure binding forces act in the poly(ethylenoxide)-poly(propylenoxide) block-copolymer systems. The difference are well demonstrated by the constants values of functions.
%Z Megjegyzés-21143223 PubMed ID: 16318235 Chemicals/CAS: carboxymethylcellulose, 8050-38-2, 9000-11-7, 9004-32-4, 9050-04-8; hydroxyethylcellulose, 9004-62-0; methylcellulose, 79484-92-7, 9004-67-5; poloxamer, 9003-11-6; Cellulose, 9004-34-6; Gels; Macromolecular Substances; Polymers; Povidone, 9003-39-8 Tradenames: hostacerin pn 73; kollidon va 64; lutrol; poloxamer Szegedi Tudományegyetem, Gyógyszertechnológiai Intézet, Eötvös u. 6., Szeged - 6720, Hungary                         Ljubljanai Egyetem, Gyógyszertechnológiai Intézet, Aškrečeva 7, Ljubljana, Slovenia                         Export Date: 22 November 2019                         CODEN: APHGA                         Correspondence Address: Illyés, F.; Szegedi Tudományegyetem, Gyógyszertechnológiai Intézet, Eötvös u. 6., Szeged - 6720, Hungary                         Chemicals/CAS: carboxymethylcellulose, 8050-38-2, 9000-11-7, 9004-32-4, 9050-04-8; hydroxyethylcellulose, 9004-62-0; methylcellulose, 79484-92-7, 9004-67-5; poloxamer, 9003-11-6; Cellulose, 9004-34-6; Gels; Macromolecular Substances; Polymers; Povidone, 9003-39-8                         Tradenames: hostacerin pn 73; kollidon va 64; lutrol; poloxamer