Spreading and brush formation by end-grafted bottle-brush polymers with adsorbing side chains.
(2013) In Langmuir 29(33). p.10455-10462- Abstract
- We investigate structural and thermodynamic properties of surface-grafted layers of model "bottle-brush" polymers by Monte Carlo simulation. The polymers consist of a longer main chain densely grafted with shorter side chains, of which the latter have some degree of affinity to the surface. Our focus is on the effect of the side-chain surface affinity on the brush properties, which we study in terms of compression isotherms spanning a broad range of grafting densities. For low grafting densities, side-chain adsorption causes the polymers to spread on the surface. As the grafting density is increased, the layer goes through a "pancake-to-brush" transition to form a brush with the main chains aligned perpendicular to the surface. We find... (More)
- We investigate structural and thermodynamic properties of surface-grafted layers of model "bottle-brush" polymers by Monte Carlo simulation. The polymers consist of a longer main chain densely grafted with shorter side chains, of which the latter have some degree of affinity to the surface. Our focus is on the effect of the side-chain surface affinity on the brush properties, which we study in terms of compression isotherms spanning a broad range of grafting densities. For low grafting densities, side-chain adsorption causes the polymers to spread on the surface. As the grafting density is increased, the layer goes through a "pancake-to-brush" transition to form a brush with the main chains aligned perpendicular to the surface. We find that side-chain adsorption is decisive for the structure of dilute layers and in the transition region but has little influence on the properties of dense brushes. The close relation between compression and adsorption isotherms is discussed, and the implications of side-chain adsorption for the ability of the polymer to form a dense brush are investigated. This analysis suggests that side-chain surface affinity alone will not give rise to "brush of bottle-brushes" layers by adsorption of polymers from solution, in agreement with recent experimental results. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4006051
- author
- Wernersson, Erik LU and Linse, Per LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 29
- issue
- 33
- pages
- 10455 - 10462
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000323472000019
- pmid:23924341
- scopus:84882586931
- pmid:23924341
- ISSN
- 0743-7463
- DOI
- 10.1021/la4021959
- language
- English
- LU publication?
- yes
- id
- 5065564e-4184-4f3c-b245-e7eab5321d0f (old id 4006051)
- date added to LUP
- 2016-04-01 10:27:44
- date last changed
- 2022-03-19 20:59:59
@article{5065564e-4184-4f3c-b245-e7eab5321d0f,
abstract = {{We investigate structural and thermodynamic properties of surface-grafted layers of model "bottle-brush" polymers by Monte Carlo simulation. The polymers consist of a longer main chain densely grafted with shorter side chains, of which the latter have some degree of affinity to the surface. Our focus is on the effect of the side-chain surface affinity on the brush properties, which we study in terms of compression isotherms spanning a broad range of grafting densities. For low grafting densities, side-chain adsorption causes the polymers to spread on the surface. As the grafting density is increased, the layer goes through a "pancake-to-brush" transition to form a brush with the main chains aligned perpendicular to the surface. We find that side-chain adsorption is decisive for the structure of dilute layers and in the transition region but has little influence on the properties of dense brushes. The close relation between compression and adsorption isotherms is discussed, and the implications of side-chain adsorption for the ability of the polymer to form a dense brush are investigated. This analysis suggests that side-chain surface affinity alone will not give rise to "brush of bottle-brushes" layers by adsorption of polymers from solution, in agreement with recent experimental results.}},
author = {{Wernersson, Erik and Linse, Per}},
issn = {{0743-7463}},
language = {{eng}},
number = {{33}},
pages = {{10455--10462}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Spreading and brush formation by end-grafted bottle-brush polymers with adsorbing side chains.}},
url = {{http://dx.doi.org/10.1021/la4021959}},
doi = {{10.1021/la4021959}},
volume = {{29}},
year = {{2013}},
}