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Updated: Jan 26, 2026
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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
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On the Orientation-Induced Crystallization of Polymers
1Division of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma Campus, Kanazawa 920-1192, Japan. nitta@se.kanazawa-u.ac.jp.
Polymers
|April 14, 2019
Summary
Orientation-induced crystallization in polymers arises from quantum mechanical hydrogen interactions between chains. This attractive force, driven by the hydrogen molecule ion (H 2 +), leads to spontaneous ground-state energy transitions, initiating crystallization.
Area of Science:
- Polymer Science
- Quantum Mechanics
- Materials Science
Background:
- Understanding polymer crystallization is crucial for material properties.
- Orientation plays a key role in polymer chain arrangement.
Purpose of the Study:
- To elucidate the quantum mechanical basis of orientation-induced polymer crystallization.
- To model intermolecular forces driving polymer chain alignment.
Main Methods:
- Introduced quantum mechanics-based intermolecular interactions for polymer chains.
- Modeled a pair of perfectly extended polymer chains.
- Focused on hydrogen interactions and the hydrogen molecule ion (H 2 +).
Main Results:
- Identified an attractive force between extended polymer chains under tension.
- This force originates from hydrogen atom interactions, modeled by H 2 +.
- The energy landscape includes ground and excited states.
Conclusions:
- Spontaneous transition to the ground state is the origin of orientation-induced crystallization.
- Quantum mechanical interactions, specifically H 2 +, drive polymer alignment and crystallization.
- This provides a fundamental understanding of polymer processing.
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