期刊
SCIENCE ADVANCES
卷 6, 期 42, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.abc3644
关键词
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资金
- Ministry of Science and Technology (MOST), Taiwan [MOST 107-2221-E-007-030-MY3]
- Air Force Office of Scientific Research (US) under Asian Office of Aerospace Research and Development Award [18IOA088]
- JSPS KAKENHI [16H02288, 19H00905]
- JST CREST, Japan [JPMJCR1993]
- Grants-in-Aid for Scientific Research [19H00905, 16H02288] Funding Source: KAKEN
Nanonetwork-structured materials can be found in nature and synthetic materials. A double gyroid (DG) with a pair of chiral networks but opposite chirality can be formed from the self-assembly of diblock copolymers. For triblock terpolymers, an alternating gyroid (G(A)) with two chiral networks from distinct end blocks can be formed; however, the network chirality could be positive or negative arbitrarily, giving an achiral phase. Here, by taking advantage of chirality transfer at different length scales, G(A) with controlled chirality can be achieved through the self-assembly of a chiral triblock terpolymer. With the homochiral evolution from monomer to multichain domain morphology through self-assembly, the triblock terpolymer composed of a chiral end block with a single-handed helical polymer chain gives the chiral network from the chiral end block having a particular handed network. Our real-space analyses reveal the preferred chiral sense of the network in the G(A), leading to a chiral phase.
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