Journal
RSC ADVANCES
Volume 5, Issue 28, Pages 21580-21587Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra15492d
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Funding
- National Natural Science Foundation of China [51173044]
- Research Innovation Program of SMEC [14ZZ065]
- Shanghai Pujiang Program [14PJ1402600]
- Project of Shanghai Colleges and Universities Experimental Technology Team Construction Plan [YJ0114206]
- Fundamental Research Funds for the Central Universities
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Poly(maleimide isobutyl polyhedral oligomeric silsesquioxane-alt-vinylbenzyl polyethylene glycol) (P(MIPOSS-alt-VBPEG)) amphiphilic copolymer brushes with a sequence of alternating MIPOSS and polyethylene glycol (PEG) side chains were synthesized via ordinary radical polymerization and reversible addition-fragmentation transfer (RAFT) polymerization. A series of alternating copolymer brushes prepared by RAFT polymerization had a low polydispersity index (PDI) of less than 1.25. The thermal properties of these copolymers were evaluated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The results displayed that the MIPOSS units could effectively enhance the thermal properties of the hybrid copolymers. The self-assembly behavior of the P(MIPOSS-alt-VBPEG) amphiphilic copolymer brushes in aqueous media was also studied by fluorescence spectrophotometry (FS), transmission electron microscopy (TEM) and dynamic light scattering (DLS). The results showed that these alternating copolymer brushes could form spherical aggregates in water.
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