Sökning: WFRF:(Reid Michael S.) >
Modification of cel...
Modification of cellulose through physisorption of cationic bio-based nanolatexes - comparing emulsion polymerization and RAFT-mediated polymerization-induced self-assembly
-
- Alexakis, Alexandros Efraim (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center
-
- Engström, Joakim (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center
-
- Stamm, Arne (författare)
- KTH,Ytbehandlingsteknik
-
visa fler...
-
- Riazanova, Anastasia (författare)
- KTH,Wallenberg Wood Science Center,Wallenberg Wood Sci Ctr WWSC, Tekn Ringen 56-58, SE-10044 Stockholm, Sweden.
-
- Brett, Calvin (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center,Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, Hamburg, 22603, Germany
-
- Roth, Stephan V. (författare)
- KTH,Ytbehandlingsteknik,Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, Hamburg, 22603, Germany
-
- Syrén, Per-Olof (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center
-
- Fogelström, Linda (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center
-
- Reid, Michael S. (författare)
- KTH,Teknisk mekanik
-
- Malmström, Eva, Professor, 1966- (författare)
- KTH,Ytbehandlingsteknik,Wallenberg Wood Science Center
-
visa färre...
-
(creator_code:org_t)
- 2021
- 2021
- Engelska.
-
Ingår i: Green Chemistry. - : Royal Society of Chemistry (RSC). - 1463-9262 .- 1463-9270. ; 23:5, s. 2113-2122
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://pubs.rsc.org...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The polymerization of a bio-based terpene-derived monomer, sobrerol methacrylate (SobMA), was evaluated in the design of polymeric nanoparticles (nanolatexes). Their synthesis was accomplished by using emulsion polymerization, either by free-radical polymerization in the presence of a cationic surfactant or a cationic macroRAFT agent by employing RAFT-mediated polymerization-induced self-assembly (PISA). By tuning the length of the hydrophobic polymer, it was possible to control the nanoparticle size between 70 and 110 nm. The average size of the latexes in both wet and dry state were investigated by microscopy imaging and dynamic light scattering (DLS). Additionally, SobMA was successfully copolymerized with butyl methacrylate (BMA) targeting soft-core nanolatexes. The comparison of the kinetic profile of the cationically stabilized nanolatexes highlighted the differences of both processes. The SobMA-based nanolatexes yielded high T-g similar to 120 degrees C, while the copolymer sample exhibited a lower T-g similar to 50 degrees C, as assessed by Differential Scanning Calorimetry (DSC). Thereafter, the nanolatexes were adsorbed onto cellulose (filter paper), where they were annealed at elevated temperatures to result in polymeric coatings. Their morphologies were analysed by Field Emission Scanning Electron Microscopy (FE-SEM) and compared to a commercial sulfate polystyrene latex (PS latex). By microscopic investigation the film formation mechanism could be unravelled. Water contact angle (CA) measurements verified the transition from a hydrophilic to a hydrophobic surface after film formation had occured. The obtained results are promising for the toolbox of bio-based building blocks, focused on sobrerol-based monomers, to be used in emulsion polymerizations either for tailored PISA-latexes or facile conventional latex formation, in order to replace methyl methacrylate or other high T-g-monomers.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Alexakis, Alexan ...
-
Engström, Joakim
-
Stamm, Arne
-
Riazanova, Anast ...
-
Brett, Calvin
-
Roth, Stephan V.
-
visa fler...
-
Syrén, Per-Olof
-
Fogelström, Lind ...
-
Reid, Michael S.
-
Malmström, Eva, ...
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Polymerkemi
- Artiklar i publikationen
-
Green Chemistry
- Av lärosätet
-
Kungliga Tekniska Högskolan