CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Growth and Termination of Cylindrical Micelles via Liquid-Crystallization-Driven Self-Assembly
Gao, L; Gao, HB; Lin, JP; Wang, LQ; Wang, XS; Yang, CM; Lin, SL
2020
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume53Issue:20Pages:8992-8999
Subtype期刊论文
AbstractGrowth and termination of cylindrical micelles with cholesteric liquid crystal (LC) cores (seeds) were achieved experimentally, following the simulation studies of liquid-crystallization-driven self-assembly (LCDSA) of block copolymers. The fluidity of LC cores was proven to be crucial for this success. To a seed solution, the added block copolymer unimers had a high tendency to form new aggregates. The formed aggregates had a less-ordered cholesteric LC structure as compared with those in the seed and subsequently fused with the seeds. After the fusion, the fluidity allowed a rearrangement of the rod blocks within the elongated segments to match the LC structure in the seeds. The fusion and rearrangement were repeated in cycles, which completely consumed the newly formed aggregates and led to a seeded-growth behavior. Under a condition that the interactions between LC blocks are stronger, the newly formed aggregates had smectic LC cores, which fused with the seeds terminating the growth. The termination is attributed to the higher energy barrier for the transition from the smectic LC structure to cholesteric active ends. This work created a theoretical basis for further exploration of living assembly using LC block copolymers, which are building blocks for a wide range of functional materials.
KeywordMOLECULAR-DYNAMICS SIMULATION CONTROLLED LENGTH 1D CORE
DOI10.1021/acs.macromol.0c01820
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32898
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat, Sch Mat Sci & Engn,Minist Educ, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem, Waterloo, ON N2L 3G1, Canada
Recommended Citation
GB/T 7714
Gao, L,Gao, HB,Lin, JP,et al. Growth and Termination of Cylindrical Micelles via Liquid-Crystallization-Driven Self-Assembly[J]. MACROMOLECULES,2020,53(20):8992-8999.
APA Gao, L.,Gao, HB.,Lin, JP.,Wang, LQ.,Wang, XS.,...&Lin, SL.(2020).Growth and Termination of Cylindrical Micelles via Liquid-Crystallization-Driven Self-Assembly.MACROMOLECULES,53(20),8992-8999.
MLA Gao, L,et al."Growth and Termination of Cylindrical Micelles via Liquid-Crystallization-Driven Self-Assembly".MACROMOLECULES 53.20(2020):8992-8999.
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