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Updated: Jun 21, 2025

Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
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量化和建模纳米孔中聚合物的结晶性

Ming Wang1,2, Chun Li3, Simone Napolitano3

  • 1Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, CAS, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

ACS macro letters
|July 11, 2024
PubMed
概括

这项研究引入了一种新的方法来测量纳米级层中的聚合物结晶性,揭示了接口对结晶至关重要,并挑战了非晶体"死亡"层的概念.

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Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
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