Compatibilization of immiscible polymer blends using block copolymer: influence of the dry brush model modifications on model results

0545059 - ÚMCH 2023 RIV DE eng C - Conference Paper (international conference)
Jůza, Josef - Fortelný, Ivan
Compatibilization of immiscible polymer blends using block copolymer: influence of the dry brush model modifications on model results.
Macromolecular Symposia, Volume 403, Issue 1, SI. Weinheim: WILEY-VCH VERLAG, 2022, č. článku 2100206. ISSN 1022-1360. E-ISSN 1521-3900.
[International Scientific Conference on PolyMerTec /4./ - PolyMerTec, Meeting on Deformation and Fracture Behaviour of Polymers /17./. Electr. network (Merseburg) (DE), 09.06.2021-11.06.2021]
R&D Projects: GA TA ČR(CZ) TN01000008
Institutional support: RVO:61389013
Keywords : polymer blends * compatibilisation * interfacial tension
OECD category: Polymer science
Method of publishing: Limited access
https://onlinelibrary.wiley.com/doi/10.1002/masy.202100206

The compatibilization of polymer blends using a copolymer can be estimated, among other, using simple theoretical models based on Leibler’s mean field theory and its modification by Noolandi. The case when copolymer chain is shorter than homopolymer chains can be described in the “dry brush” approximation for high concentration of the copolymer in the interfacial layer and in the approximation for the low copolymer concentration in the interfacial layer. Since there is a discontinuity between results provided by them, the effect of several modifications of the dry brush approximation has been studied. None of the tried modifications shifts results closer to the approximation of the low copolymer concentration.
Permanent Link: https://hdl.handle.net/11104/0335278