Title
Poly(acrylamide-co-styrene): A Macrosurfactant for Oil/Water Emulsion Templating toward Robust Macroporous Hydrogels
... show all
Abstract
Large amounts of relatively expensive small-molecule surfactants, between 6 and 25%, are typically required for the formulation of oil/water high or medium internal phase emulsion (H/MIPE) templates. We synthesized an amphiphilic “macrosurfactant” copolymer poly(acrylamide-co-styrene) via micellar polymerization. As-synthesized poly(acrylamide-co-styrene) still associated with 0.01 wt % cetyltrimethylammonium bromide (CTAB) can be used to produce stable toluene or cyclohexane-in-water H/MIPEs already at concentrations of 0.1 wt %. Emulsion templates containing 2-hydroxyethyl methacrylate (HEMA) and N,N-methylenebis(acrylamide) (MBAm) in the aqueous continuous phase can be polymerized to produce macroporous poly(HEMA-co-MBAm)M/HIPEs. Our poly(HEMA-co-MBAm)M/HIPEs synthesized in templates stabilized with much lower emulsifier content were mechanically more robust, in dry and swollen state, as compared with poly(HEMA-co-MBAm)HIPEs reported in the literature.
Keywords
CopolymersEmulsionsGeneticsPolymersSorption
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1971535
Appeared in
Title
Macromolecules
Volume
56
Issue
8
ISSN
0024-9297
Issued
2023
From page
3213
To page
3223
Publisher
American Chemical Society (ACS)
Date issued
2023
Access rights
Rights statement
© 2023 The Authors
University of Vienna | Universitätsring 1 | 1010 Vienna | T +43-1-4277-0