Growth of Bulky Extended Chain Single Crystals of Polyethylene

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概要

• 論文の詳細を見る

• Crystallization process of fractionated polyethylene (PH) about 10 pm thickfrom liquid at high pressure was observed by optical microscope and X-raymethod. The needle-like crystal obtained was unchanged in the shape except forappearing of striation through the hexagonal-orthorhombic transition and itgave spotty X-ray pattern corresponding to the a'-b' plane of reciprocal latticeof hexagonal and orthorhombic form. The direction of its long axis coincided tothat of [0104 in the hexagonal form and to that of [0107, [1107 or [TI0] in theorthorhombic form. These results suggests that the needle-like crystal was corn-posed of rather bulky single crystals of 7zm dimension as compared with theusual polymer single crystals of 100 A thick and that the formation of the hexa-gonal needle-like crystal corresponds to that of extended chain crystal of PH.

• 社団法人日本物理学会の論文
• 1981-02-15

著者

• HIKOSAKA Masamichi

  Department of Materials Science and Engineering, Faculty of Engineering, Yamagata University

• Hikosaka Masamichi

  Department Of Physics Faculty Of Science Tokyo Metropolitan University

• TAMAKI Shunpei

  Department of Physics,Faculty of Science,Tokyo Metropolitan University

• Tamaki Shunpei

  Department Of Physics Faculty Of Science Tokyo Metropolitan University

関連論文

• Role of Transient Metastable Hexagonal Phase in the Formation of Extended Chain Single Crystals of Vinylidene Fluoride and Trifluoroethylene Copolymers
• Lateral Growth of Extemded-Chain Single Crystals of Vinylidene Fluorideand Trifluoroethylene Copolymers
• Morphology of Extended Chain Single Crystals of Vinylidene Fluoride and Trifluoroethylene Copolymers
• Melting and Solid-Solid Transition of Polyethylene under Pressure
• Solid-Liquid Phase Diagrams of n-Paraffin and Polyethylene
• Formation of Oriented Isotactic Polypropylene γ-Form Crystal through α-γ Transition
• Effect of Molecular Weight on Phase Transition of Polyethylene under High Pressure
• Growth Rate of Polyethylene Single Crystals at High Pressure
• Growth of Bulky Extended Chain Single Crystals of Polyethylene
• Direct Observation of Morphology and Growth Rate of Extended Chain Single Crystals of Polyethylene

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