Comparison of Crystallization Rate and Macroscopic Morphology of Two Oxyethylene/Oxybutylene Triblock Copolymers. The Effect of Molecular Architecture

この論文にアクセスする

この論文をさがす

著者

抄録

Two oxyethylene/oxybutylene triblock copolymers, B<SUB>28</SUB>E<SUB>182</SUB>B<SUB>28</SUB> and E<SUB>91</SUB>B<SUB>56</SUB>E<SUB>91</SUB>, which have the same chain length and segregation strength but different architectures, were selected for characterization and the effect of architecture on crystallization rate and macroscopic morphology was investigated. It is found that these two triblock copolymers have similar melting temperatures and the same long periods both in the solid and in the melt. However, the crystallization temperature of E<SUB>91</SUB>B<SUB>56</SUB>E<SUB>91</SUB> is more easily affected by the cooling rate in non-isothermal crystallization and E<SUB>91</SUB>B<SUB>56</SUB>E<SUB>91</SUB> exhibits slower crystallization rate than B<SUB>28</SUB>E<SUB>182</SUB>B<SUB>28</SUB> in isothermal crystallization. A novel macroscopic morphology that the frontier of crystallization zones and that of spherulites are mutually different is observed by polarized optical microscopy in E<SUB>91</SUB>B<SUB>56</SUB>E<SUB>91</SUB>, whereas these two frontiers are identical for B<SUB>28</SUB>E<SUB>182</SUB>B<SUB>28</SUB>. The slower crystallization rate and poorer ability of organization into spherulite of E<SUB>91</SUB>B<SUB>56</SUB>E<SUB>91</SUB> are attributed to the difficulty in conformational change of the amorphous B block during crystallization since both ends of the B block are immobilized at the interface.

収録刊行物

  • Polymer journal

    Polymer journal 36(6), 465-471, 2004-06-15

    社団法人 高分子学会

参考文献:  15件中 1-15件 を表示

  • <no title>

    MAI S. M.

    Macromolecules 33, 5124, 2000

    被引用文献1件

  • <no title>

    VAVASOUR J. D.

    Macromolecules 25, 5477, 1992

    被引用文献4件

  • <no title>

    VAVASOUR J. D.

    Macromolecules 26, 7070, 1993

    被引用文献3件

  • <no title>

    HAMLEY I. W.

    The Physics of Block Copolymers, 1998

    被引用文献13件

  • <no title>

    BOOTH C.

    Macromol. Rapid Commun. 21, 501, 2000

    被引用文献2件

  • <no title>

    RYAN A. J.

    Macromolecules 30, 1723, 1997

    被引用文献7件

  • <no title>

    MAI S. M.

    Macromolecules 30, 8392, 1997

    被引用文献3件

  • <no title>

    DIMARZIO E. A.

    Macromolecules 13, 1194, 1980

    被引用文献10件

  • <no title>

    XU J. T.

    Macromolecules 35, 3614, 2002

    被引用文献2件

  • <no title>

    CHAIBUNDIT C.

    Macromol. Rapid Commun. 21, 964, 2000

    被引用文献1件

  • <no title>

    MATSEN M. W.

    J. Chem. Phys. 111, 7139, 1999

    被引用文献1件

  • <no title>

    RYAN A. J.

    Phys. Chem. Chem. Phys. 3, 2961, 2001

    被引用文献1件

  • <no title>

    CHAIBUNDIT C.

    Macromolecules 35, 4838, 2002

    被引用文献1件

  • <no title>

    AVRAMI M.

    J. Chem. Phys. 7, 1103, 1939

    DOI 被引用文献87件

  • <no title>

    WHITMORE M. D.

    Makromol. Chem., Macromol. Symp. 16, 235, 1988

    被引用文献1件

各種コード

  • NII論文ID(NAID)
    10013081172
  • NII書誌ID(NCID)
    AA00777013
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00323896
  • NDL 記事登録ID
    6968119
  • NDL 雑誌分類
    ZP16(科学技術--化学・化学工業--高分子化学・高分子化学工業)
  • NDL 請求記号
    Z53-R487
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ