Macroporous elastic polyacrylamide gels prepared at subzero temperatures: control of porous structure
(2006) In Journal of Materials Chemistry 16(41). p.4065-4073- Abstract
- Macroporous polyacrylamide gels (MPAAGs) with unique elastic morphology and open porous structure are prepared at subzero temperatures. The porous structure of MPAAGs consisting of large, 1 - 100 mu m-sized interconnected pores, is controlled by the freezing temperature, the content of the initiator system ( ammonium persulfate and N,N,N',N'-tetramethyl-ethylenediamine) in the initial reaction mixture and the solvent used. The initiator content, through its effects on the kinetics of polymerization, is an efficient tool of control allowing for the preparation of well defined macroporous elastic structures with either open interconnected pores or closed pores. In the semi-frozen reaction mixture, the dissolved monomers and initiators are... (More)
- Macroporous polyacrylamide gels (MPAAGs) with unique elastic morphology and open porous structure are prepared at subzero temperatures. The porous structure of MPAAGs consisting of large, 1 - 100 mu m-sized interconnected pores, is controlled by the freezing temperature, the content of the initiator system ( ammonium persulfate and N,N,N',N'-tetramethyl-ethylenediamine) in the initial reaction mixture and the solvent used. The initiator content, through its effects on the kinetics of polymerization, is an efficient tool of control allowing for the preparation of well defined macroporous elastic structures with either open interconnected pores or closed pores. In the semi-frozen reaction mixture, the dissolved monomers and initiators are concentrated in the unfrozen liquid microphase where the polymerization reaction proceeds. The final freezing temperature, T-f ( defined as temperature fixed in a low temperature thermostat), as well as the solvent used affect the porous structure through their effect on the formation of the unfrozen liquid microphase. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/387933
- author
- Plieva, Fatima LU ; Xiao, Huiting ; Galaev, Igor LU ; Bergenståhl, Björn LU and Mattiasson, Bo LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Materials Chemistry
- volume
- 16
- issue
- 41
- pages
- 4065 - 4073
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000241365600009
- scopus:33750152566
- ISSN
- 1364-5501
- DOI
- 10.1039/b606734d
- language
- English
- LU publication?
- yes
- id
- 75098102-0be9-4f3f-8ce7-7de79e82b80e (old id 387933)
- date added to LUP
- 2016-04-01 11:59:35
- date last changed
- 2024-10-08 17:37:00
@article{75098102-0be9-4f3f-8ce7-7de79e82b80e, abstract = {{Macroporous polyacrylamide gels (MPAAGs) with unique elastic morphology and open porous structure are prepared at subzero temperatures. The porous structure of MPAAGs consisting of large, 1 - 100 mu m-sized interconnected pores, is controlled by the freezing temperature, the content of the initiator system ( ammonium persulfate and N,N,N',N'-tetramethyl-ethylenediamine) in the initial reaction mixture and the solvent used. The initiator content, through its effects on the kinetics of polymerization, is an efficient tool of control allowing for the preparation of well defined macroporous elastic structures with either open interconnected pores or closed pores. In the semi-frozen reaction mixture, the dissolved monomers and initiators are concentrated in the unfrozen liquid microphase where the polymerization reaction proceeds. The final freezing temperature, T-f ( defined as temperature fixed in a low temperature thermostat), as well as the solvent used affect the porous structure through their effect on the formation of the unfrozen liquid microphase.}}, author = {{Plieva, Fatima and Xiao, Huiting and Galaev, Igor and Bergenståhl, Björn and Mattiasson, Bo}}, issn = {{1364-5501}}, language = {{eng}}, number = {{41}}, pages = {{4065--4073}}, publisher = {{Royal Society of Chemistry}}, series = {{Journal of Materials Chemistry}}, title = {{Macroporous elastic polyacrylamide gels prepared at subzero temperatures: control of porous structure}}, url = {{http://dx.doi.org/10.1039/b606734d}}, doi = {{10.1039/b606734d}}, volume = {{16}}, year = {{2006}}, }