Journal
POLYMERS
Volume 9, Issue 7, Pages -Publisher
MDPI AG
DOI: 10.3390/polym9070251
Keywords
amphiphilic; thiol-ene chick chemistry; CMC; thermo-sensitive
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Funding
- National Natural Science Foundation of China [11372108]
- Natural Science Foundation of Hunan Province [14JJ5021]
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We demonstrated here a facile and efficient synthesis of polyhedral oligomeric silsesquioxane-based amphiphilic polymer by thiol-ene click chemistry. The properties of polyhedral oligomeric silsesquioxane (POSS)-PEG amphiphilic polymers were studied in detail by a combination of H-1 NMR, C-13 NMR, Si-29 NMR FT-IR, GPC, and TG analysis. The newly-designed thiol-ene protocol obtains only anti-Markovnikov addition POSS-based amphiphilic polymers when compared with platinum-catalysed hydrosilylation method. The critical micelle concentration (CMC) of the resulting polymers are in the range of 0.011 to 0.050 mg/mL, and dynamic light scattering (DLS) results revealed that the obtained amphiphilic polymers can self-assemble into nanoparticles in aqueous solutions with a bimodal (two peaks) distribution. Furthermore, the specific polymer showed obvious thermo-sensitive behaviour at 45.5 degrees C.
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