Matches in SemOpenAlex for { <https://semopenalex.org/work/W3158338051> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W3158338051 abstract "Thiol-allyl cross-linked microstructure polymer particles were prepared via a high shear suspension polymerisation technique using the thiol-ene click reaction of hexa-allyl (HA) with pentaerythritol tetrakis(3-mercaptopropionate) (tetrathiol, 4T), trimethylolpropane tris(3-mercaptopropionate) (trithiol, 3T), 2,2′-(ethylenedioxy) diethanethiol (dithiol, 2T, TEGDT) and 1,6-hexanedithiol (dithiol, 2T, HDT). HA was made as the result of a one-step reaction by combining the epoxy ring opening reaction with the Michael addition reaction reagent. 1H NMR, 13CNMR, 1H COSY NMR FT-IR and mass specrometry were used for characterisation. Various acrylate monomers of 2-hydroxyethyl acrylate (HEA), methyl acrylate (MA), ethylene glycol methyl ether acrylate (EGMEA) and 2 (diethylamino)ethyl acrylate (DEAEA) were introduced into the residual thiol functional groups on the surface of tetrathiol-HA microsphere polymer particles via the thiol-ene Michael addition reaction. The chemical structure and composition of these particles was studied using FT-IR, Raman spectroscopy and energy dispersive X-ray spectroscopy (EDX), and illustrated that producing particles with the residual of the thiol functional group achieved excellent structure and functionality before and after the post polymerisation functionalization. The investigation using EDX mapping confirms that C, N, O and S and are uniformly spread over particles before and after post polymerisation functionalization. We explore the role of parameters such as the molar ratio of the thiol monomer, homogenizer speed, crosslinking density, photo polymerization time and thermal curing method in terms of the glass transition temperatures (Tg) and the surface morphology of the cross-linked microsphere thiol-allyl particles, before and after post-polymerization functionalization, as well as different types and volumes of the solvents used in the functionalization process. The Tg and the morphology of these particles was analysed by Differential Scanning Calorimetry (DSC) and using scanning electron microscopy (SEM). Water-in-oil (W/O) high internal phase emulsions (HIPEs) containing trimethylolpropane tris(3-mercaptopropionate) (trithiol) and dipentaerythritol penta/hexaacrylate (oil phase) were emulsified via the use of three different pieces of equipment - an overhead stirrer (300 rpm), a vortex mixer (30 Hertz), and a homogenizer (up to 8000 rpm). A porous polymeric foam with an interconnected pore structure was produced by polymerisation of the continuous phase of the HIPEs. It was characterised by SEM." @default.
- W3158338051 created "2021-05-10" @default.
- W3158338051 creator A5024025561 @default.
- W3158338051 date "2019-03-01" @default.
- W3158338051 modified "2023-09-24" @default.
- W3158338051 title "Developing advanced polymer colloids via thiol-ene click chemistry" @default.
- W3158338051 hasPublicationYear "2019" @default.
- W3158338051 type Work @default.
- W3158338051 sameAs 3158338051 @default.
- W3158338051 citedByCount "0" @default.
- W3158338051 crossrefType "dissertation" @default.
- W3158338051 hasAuthorship W3158338051A5024025561 @default.
- W3158338051 hasConcept C122865956 @default.
- W3158338051 hasConcept C166940927 @default.
- W3158338051 hasConcept C178790620 @default.
- W3158338051 hasConcept C185592680 @default.
- W3158338051 hasConcept C188027245 @default.
- W3158338051 hasConcept C192562407 @default.
- W3158338051 hasConcept C205474432 @default.
- W3158338051 hasConcept C2776617069 @default.
- W3158338051 hasConcept C2776949262 @default.
- W3158338051 hasConcept C27777614 @default.
- W3158338051 hasConcept C2778004933 @default.
- W3158338051 hasConcept C2778420591 @default.
- W3158338051 hasConcept C2779578285 @default.
- W3158338051 hasConcept C2779989194 @default.
- W3158338051 hasConcept C2780547246 @default.
- W3158338051 hasConcept C44228677 @default.
- W3158338051 hasConcept C521977710 @default.
- W3158338051 hasConceptScore W3158338051C122865956 @default.
- W3158338051 hasConceptScore W3158338051C166940927 @default.
- W3158338051 hasConceptScore W3158338051C178790620 @default.
- W3158338051 hasConceptScore W3158338051C185592680 @default.
- W3158338051 hasConceptScore W3158338051C188027245 @default.
- W3158338051 hasConceptScore W3158338051C192562407 @default.
- W3158338051 hasConceptScore W3158338051C205474432 @default.
- W3158338051 hasConceptScore W3158338051C2776617069 @default.
- W3158338051 hasConceptScore W3158338051C2776949262 @default.
- W3158338051 hasConceptScore W3158338051C27777614 @default.
- W3158338051 hasConceptScore W3158338051C2778004933 @default.
- W3158338051 hasConceptScore W3158338051C2778420591 @default.
- W3158338051 hasConceptScore W3158338051C2779578285 @default.
- W3158338051 hasConceptScore W3158338051C2779989194 @default.
- W3158338051 hasConceptScore W3158338051C2780547246 @default.
- W3158338051 hasConceptScore W3158338051C44228677 @default.
- W3158338051 hasConceptScore W3158338051C521977710 @default.
- W3158338051 hasLocation W31583380511 @default.
- W3158338051 hasOpenAccess W3158338051 @default.
- W3158338051 hasPrimaryLocation W31583380511 @default.
- W3158338051 hasRelatedWork W1930787136 @default.
- W3158338051 hasRelatedWork W1933371943 @default.
- W3158338051 hasRelatedWork W1981826934 @default.
- W3158338051 hasRelatedWork W2002565876 @default.
- W3158338051 hasRelatedWork W2084269775 @default.
- W3158338051 hasRelatedWork W2084880016 @default.
- W3158338051 hasRelatedWork W2090789682 @default.
- W3158338051 hasRelatedWork W2103013091 @default.
- W3158338051 hasRelatedWork W2303361899 @default.
- W3158338051 hasRelatedWork W2324555333 @default.
- W3158338051 hasRelatedWork W2331370837 @default.
- W3158338051 hasRelatedWork W2394970392 @default.
- W3158338051 hasRelatedWork W2615798217 @default.
- W3158338051 hasRelatedWork W2802902334 @default.
- W3158338051 hasRelatedWork W2809007235 @default.
- W3158338051 hasRelatedWork W2952533931 @default.
- W3158338051 hasRelatedWork W3011353315 @default.
- W3158338051 hasRelatedWork W3137390079 @default.
- W3158338051 hasRelatedWork W3154802439 @default.
- W3158338051 hasRelatedWork W3191979210 @default.
- W3158338051 isParatext "false" @default.
- W3158338051 isRetracted "false" @default.
- W3158338051 magId "3158338051" @default.
- W3158338051 workType "dissertation" @default.