Dynamic Viscoelastic Properties of Crystalline Polymer Blends - Effect of the Viscosity of Domain Phase -

• Kashihara Hisahiko

  Department of Material Chemistry, Kyoto University Minase Research Laboratories, Sekisui Chemical Co., Ltd.

• Takahashi Masaoki

  Department of Polymer Science and Engineering, Kyoto Institute of Technology

• Urayama Kenji

  Department of Material Chemistry, Kyoto University

• Takigawa Toshikazu

  Department of Material Chemistry, Kyoto University

Bibliographic Information

Other Title

• 分散相粘度が結晶化によって変化するポリマーブレンドの動的粘弾性
• ブンサンソウ ネンド ガ ケッショウカ ニ ヨッテ ヘンカ スル ポリマー ブレンド ノ ドウテキネンダンセイ

Abstract

We investigated the influence of viscoelasticity of the domain phase on that of the polymer blend. The polyethylene (PE, matrix phase)/polypropylene (PP, domain phase) blend was used and the viscoelastic change was measured on condition that PP alone crystallizes. The modulus of domain phase was lower than that of matrix phase at first, but was much higher when PP was completely crystalized. The average domain size was almost the same before and after the test. The storage modulus at low frequencies increased more rapidly than that at high frequencies, and then the former decreased and the latter increased continuously. These changes are almost understood by Palierne's emulsion model. Recovery from deformation of domain phase effectively makes long-time viscoelastic relaxation when the modulus of domain phase is close to or lower than that of matrix phase.<br>

Journal

• Nihon Reoroji Gakkaishi

  Nihon Reoroji Gakkaishi 32 (4), 215-219, 2004

  The Society of Rheology, Japan

Keywords

• Crystallization
• Polymer blend
• Dynamic viscoelasticity
• Emulsion model
• Relaxation time

Details

• CRID: 1390001205092881536
• NII Article ID: 10029816059
• NII Book ID: AN00198812
• DOI: 10.1678/rheology.32.215
• ISSN: 21864586
• ISSN: 03871533
• NDL BIB ID: 7081981
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7081981
• Web Site: https://www.jstage.jst.go.jp/article/rheology/32/4/32_4_215/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed