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Updated: Mar 3, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
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聚乙烯化物-三乙烯的结晶机制:核过渡,生长动力学和微观结构进化

Christine A Orme1, En Ju Cho1, Xiaojie Xu1

  • 1Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550, United States.

Macromolecules
|March 2, 2026
PubMed
概括

这项研究揭示了FK-800共聚合物结晶动力学如何影响其结构和性能. 我们使用先进的显微镜和散射技术来模拟其跨温度的行为,将纳米级动力学与散装特性联系起来.

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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
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The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
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