Mixed solutions of hydrophobically modified graft and block copolymers
(2004) In Colloids and Surfaces A: Physicochemical and Engineering Aspects 236(1-3). p.159-164- Abstract
- Phase separation temperatures and viscosities of dilute and semidilute aqueous mixtures of hydrophobically modified graft and block copolymers have been studied. The graft copolymer was hydrophobically modified ethyl(hydroxyethyl)cellulose (HM-EHEC), and the block copolymers were hydrophobically modified poly(ethylene glycol) (HM-PEG) with diblock (DB) or triblock (TB) structures, i.e., modified at one or both ends, respectively. For comparison, viscosity measurements were made also on mixtures of TB with HM-HEC, and on systems where one of the polymers was unmodified (i.e. HM-EHEC/PEG or TB/EHEC). All results indicate mixed hydrophobic associations between graft and block copolymers. Moderate viscosity enhancements were found on addition... (More)
- Phase separation temperatures and viscosities of dilute and semidilute aqueous mixtures of hydrophobically modified graft and block copolymers have been studied. The graft copolymer was hydrophobically modified ethyl(hydroxyethyl)cellulose (HM-EHEC), and the block copolymers were hydrophobically modified poly(ethylene glycol) (HM-PEG) with diblock (DB) or triblock (TB) structures, i.e., modified at one or both ends, respectively. For comparison, viscosity measurements were made also on mixtures of TB with HM-HEC, and on systems where one of the polymers was unmodified (i.e. HM-EHEC/PEG or TB/EHEC). All results indicate mixed hydrophobic associations between graft and block copolymers. Moderate viscosity enhancements were found on addition of HM-PEG to HM-EHEC, and the effects were larger for TB than for DB. The viscosity changes were quite sensitive to the concentration of HM-EHEC. (C) 2004 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/154105
- author
- Karlberg, Maria LU ; Thuresson, Krister LU ; Piculell, Lennart LU and Lindman, Björn LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Hydrophobically modified copolymers, Graft copolymer, Block copolymer
- in
- Colloids and Surfaces A: Physicochemical and Engineering Aspects
- volume
- 236
- issue
- 1-3
- pages
- 159 - 164
- publisher
- Elsevier
- external identifiers
-
- wos:000221608200019
- scopus:1942542145
- ISSN
- 0927-7757
- DOI
- 10.1016/j.colsurfa.2004.01.035
- language
- English
- LU publication?
- yes
- id
- 358040ab-9bb8-4f8e-89f4-b54c65564e64 (old id 154105)
- date added to LUP
- 2016-04-01 15:21:26
- date last changed
- 2022-01-28 04:59:37
@article{358040ab-9bb8-4f8e-89f4-b54c65564e64, abstract = {{Phase separation temperatures and viscosities of dilute and semidilute aqueous mixtures of hydrophobically modified graft and block copolymers have been studied. The graft copolymer was hydrophobically modified ethyl(hydroxyethyl)cellulose (HM-EHEC), and the block copolymers were hydrophobically modified poly(ethylene glycol) (HM-PEG) with diblock (DB) or triblock (TB) structures, i.e., modified at one or both ends, respectively. For comparison, viscosity measurements were made also on mixtures of TB with HM-HEC, and on systems where one of the polymers was unmodified (i.e. HM-EHEC/PEG or TB/EHEC). All results indicate mixed hydrophobic associations between graft and block copolymers. Moderate viscosity enhancements were found on addition of HM-PEG to HM-EHEC, and the effects were larger for TB than for DB. The viscosity changes were quite sensitive to the concentration of HM-EHEC. (C) 2004 Elsevier B.V. All rights reserved.}}, author = {{Karlberg, Maria and Thuresson, Krister and Piculell, Lennart and Lindman, Björn}}, issn = {{0927-7757}}, keywords = {{Hydrophobically modified copolymers; Graft copolymer; Block copolymer}}, language = {{eng}}, number = {{1-3}}, pages = {{159--164}}, publisher = {{Elsevier}}, series = {{Colloids and Surfaces A: Physicochemical and Engineering Aspects}}, title = {{Mixed solutions of hydrophobically modified graft and block copolymers}}, url = {{http://dx.doi.org/10.1016/j.colsurfa.2004.01.035}}, doi = {{10.1016/j.colsurfa.2004.01.035}}, volume = {{236}}, year = {{2004}}, }