期刊
POLYMER CHEMISTRY
卷 10, 期 36, 页码 4954-4961出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9py01078e
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资金
- Japan Society for the Promotion of Science KAKENHI [JP17H03066, JP17K19159]
- Ogasawara Foundation for the Promotion of Science Engineering
- Inamori Foundation
- Tokuyama Science Foundation
- Noguchi Institute
Herein, we created amphiphilic polymers bearing hydrophilic/hydrophobic block pendants as a new class of self-assembled materials for microphase separation in the solid state and forming folded flower micelles in water. For this, we designed amphiphilic block methacrylates comprising hydrophilic poly(ethylene glycol) (PEG) and a hydrophobic dodecyl group: DPEG10MA and DPEG23MA. The DPEG10MA and DPEG23MA homopolymers induced microphase separation of the block pendants. For example, the DPEG23MA homopolymer formed lamellar structures; the hydrophilic and crystallized PEG and hydrophobic dodecyl units are alternately layered with about 14 nm domain spacing. In water, random copolymers of PEG methyl ether methacrylate and DPEG10MA folded into flower micelles with both looped and linear PEG shells, where the dodecyl groups of the incorporated DPEG10MA assembled to form hydrophobic cores. The micelles further showed thermoresponsive solubility in water. The size, aggregation number, and cloud point of the micelles were controlled by their composition and chain length.
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