Grazing incidence X-ray diffraction study on surface crystal structure of polyethylene thin films

Hirohiko Yakabe, Keiji Tanaka, Toshihiko Nagamura, Sono Sasaki, Osami Sakata, Atsushi Takahara, Tisato Kajiyama

研究成果: Contribution to journalArticle査読

27 被引用数 (Scopus)

抄録

Crystal structure in thin films of melt-crystallized and annealed polyethylene (PE) was examined by grazing incidence X-ray diffraction measurements. Choosing appropriate incident angles of X-rays to the films, surface and bulk molecular aggregation states were successfully extracted. Consequently, it was found that chain packing structure in the surface region was different from that in the bulk one. Based on paracrystalline analysis for the (110) reflection and its higher-order ones of PE orthorhombic crystal, it was clarified that the ordering for the crystalline lattice was lower in the surface region. Also, apparent crystallinity in the surface was lower than the bulk one. These results indicate that disordered crystallites were preferentially formed in the surface region.

本文言語英語
ページ(範囲)213-222
ページ数10
ジャーナルPolymer Bulletin
53
3
DOI
出版ステータス出版済み - 1 1 2005

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 凝縮系物理学
  • ポリマーおよびプラスチック
  • 材料化学

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