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• W2892958898 endingPage "12988" @default.
• W2892958898 startingPage "12980" @default.
• W2892958898 abstract "We report the synthesis of highly transparent poly(stearyl methacrylate)-poly(2,2,2-trifluoroethyl methacrylate) (PSMA-PTFEMA) diblock copolymer nanoparticles via polymerization-induced self-assembly (PISA) in nonpolar media at 70 °C. This was achieved by chain-extending a PSMA precursor block via reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of TFEMA in n-tetradecane. This n-alkane has the same refractive index as the PTFEMA core-forming block at 70 °C, which ensures high light transmittance when targeting 33 nm spherical nanoparticles. Such isorefractivity enables visible absorption spectra to be recorded with minimal light scattering even at 30% w/w solids. However, in situ monitoring of the trithiocarbonate RAFT end-groups during PISA requires selection of a weak n → π* band at 446 nm. Conversion of TFEMA into PTFEMA causes a contraction in the reaction solution volume, leading to an initial increase in absorbance that enables the kinetics of polymerization to be monitored via dilatometry. At ∼98% TFEMA conversion, this 446 nm band remains constant for 2 h at 70 °C, indicating surprisingly high RAFT chain-end fidelity (and hence pseudoliving character) under monomer-starved conditions. In situ 19F NMR spectroscopy studies provide evidence for (i) the onset of micellar nucleation, (ii) solvation of the nanoparticle cores by TFEMA monomer, and (iii) surface plasticization of the nanoparticle cores by n-tetradecane at 70 °C. Finally, the kinetics of RAFT chain-end removal can be conveniently monitored by in situ visible absorption spectroscopy: addition of excess initiator at 70 °C causes complete discoloration of the dispersion, with small-angle X-ray scattering studies confirming no change in nanoparticle morphology under these conditions." @default.
• W2892958898 created "2018-10-05" @default.
• W2892958898 creator A5023019670 @default.
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• W2892958898 date "2018-09-25" @default.
• W2892958898 modified "2023-10-12" @default.
• W2892958898 title "In Situ Spectroscopic Studies of Highly Transparent Nanoparticle Dispersions Enable Assessment of Trithiocarbonate Chain-End Fidelity during RAFT Dispersion Polymerization in Nonpolar Media" @default.
• W2892958898 cites W1658286097 @default.
• W2892958898 cites W1789552972 @default.
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• W2892958898 cites W1972699537 @default.
• W2892958898 cites W1974439691 @default.
• W2892958898 cites W1982915834 @default.
• W2892958898 cites W1989350233 @default.
• W2892958898 cites W1995032314 @default.
• W2892958898 cites W2003634590 @default.
• W2892958898 cites W2009701893 @default.
• W2892958898 cites W2013715101 @default.
• W2892958898 cites W2016268440 @default.
• W2892958898 cites W2018421679 @default.
• W2892958898 cites W2021575148 @default.
• W2892958898 cites W2024881586 @default.
• W2892958898 cites W2027521170 @default.
• W2892958898 cites W2027752479 @default.
• W2892958898 cites W2033471573 @default.
• W2892958898 cites W2034642128 @default.
• W2892958898 cites W2036333105 @default.
• W2892958898 cites W2040010630 @default.
• W2892958898 cites W2040338441 @default.
• W2892958898 cites W2043050194 @default.
• W2892958898 cites W2048589206 @default.
• W2892958898 cites W2049121705 @default.
• W2892958898 cites W2055321318 @default.
• W2892958898 cites W2059601175 @default.
• W2892958898 cites W2062258474 @default.
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• W2892958898 cites W2075370047 @default.
• W2892958898 cites W2076076242 @default.
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• W2892958898 cites W2091529380 @default.
• W2892958898 cites W2096054371 @default.
• W2892958898 cites W2098447450 @default.
• W2892958898 cites W2113752987 @default.
• W2892958898 cites W2119861624 @default.
• W2892958898 cites W2137002844 @default.
• W2892958898 cites W2139050928 @default.
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• W2892958898 cites W2473109425 @default.
• W2892958898 cites W2516910325 @default.
• W2892958898 cites W2561515125 @default.
• W2892958898 cites W2567014459 @default.
• W2892958898 cites W2573509529 @default.
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• W2892958898 cites W2611274699 @default.
• W2892958898 cites W2617864720 @default.
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• W2892958898 doi "https://doi.org/10.1021/jacs.8b07953" @default.
• W2892958898 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6187374" @default.
• W2892958898 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30252464" @default.
• W2892958898 hasPublicationYear "2018" @default.
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