Morphological changes in thermoplastic polyurethanes during heating

被引：0
|
作者：
Laity, P.R. [1 ]
Taylor, J.E. [1 ]
Wong, S.S. [2 ]
Khunkamchoo, P. [2 ]
Cable, M. [3 ]
Andrews, G.T. [3 ]
Johnson, A.F. [2 ]
Cameron, R.E. [1 ]
机构：
[1] Materials Science and Metallurgy, University of Cambridge, New Museums Site, Cambridge CB2 3QZ, United Kingdom
[2] IRC in Polymer Science and Technology, School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom
[3] Ranier Technology Ltd., Greenhouse Park Innovation Centre, Newmarket Rd., Cambridge, CB1 5AS, United Kingdom
来源：
Journal of Applied Polymer Science | 2006年 / 100卷 / 01期
关键词：
This work investigated the thermal behavior of a series of thermoplastic poly(ether-urethane)s containing 36-71% by weight hard segments derived from 4,4′-methylene-bisphenylisocyanate and butane-l,4-diol, with poly(tetramethylene oxide) soft segments. In all materials studied, differential scanning calorimetry revealed the presence of a T1 endotherm ∼20-30°C above the annealing temperature. Morphological changes during heating were observed using small-angle X-ray scattering; the data was analyzed using globular models based on a one-dimensional statistical lattice or the Percus-Yevick description of liquids; both of which appeared to provide good descriptions of these materials. The results indicated that the T 1 endotherm coincided with the onset of morphological changes during heating. Possible explanations are discussed; based on the melting of small hard-segment crystals or an activation energy associated with transient segmental mixing. © 2006 Wiley Periodicals; Inc;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：779 / 790
相关论文
共 50 条
  • [31] Utilization of Thermoplastic Polyurethanes in Europe.
    Ter Meulen, B.H.
    Muanyag Es Gumi/Plastics and Rubber, 1984, 21 (09): : 265 - 270
  • [32] Marine-degradable thermoplastic polyurethanes
    Moravek, Scott J.
    Cooper, Tim R.
    Hassan, Mohammad K.
    Wiggins, Jeffrey S.
    Mauritz, Kenneth A.
    Storey, Robson F.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2007, 233
  • [33] MORPHOLOGICAL-CHANGES DURING HEATING OF ERYTHROCYTES FROM STORED HUMAN-BLOOD
    SOLBERG, C
    LITTLE, C
    JOURNAL OF THERMAL BIOLOGY, 1984, 9 (03) : 221 - 228
  • [34] MORPHOLOGICAL-CHANGES OF ELECTRODEPOSITED ZN AND ZN-FE COATINGS DURING HEATING
    GU, M
    MARDER, AR
    JOURNAL OF MATERIALS SCIENCE, 1991, 26 (17) : 4588 - 4598
  • [35] GE-AL THIN-FILM MORPHOLOGICAL-CHANGES DURING HEATING
    PLAKHOTNIKOV, OI
    GOLDINER, MG
    SCHWARZMANN, IL
    INTERNATIONAL JOURNAL OF ELECTRONICS, 1992, 73 (05) : 999 - 1002
  • [36] Effects of UV light on physicochemical changes in thermoplastic polyurethanes: Mechanism and disinfection byproduct formation
    Cheng X.
    Wu J.
    Yu B.
    Zhang M.
    Miao M.
    Mackey H.
    Li Y.
    Chemosphere, 2024, 363
  • [37] Pulsed laser heating of soot: morphological changes
    Vander Wal, RL
    Choi, MY
    CARBON, 1999, 37 (02) : 231 - 239
  • [38] Morphological evolution and property changes of acrylate rubber/polyacetal thermoplastic vulcanizates during dynamic vulcanization process
    Huang, Xin
    Gong, Wei Ying
    Deng, Tao
    JOURNAL OF APPLIED POLYMER SCIENCE, 2024, 141 (17)
  • [39] Heating-Responsive Shape-Memory Effect in Thermoplastic Polyurethanes with Low Melt-Flow Index
    Sun, Li
    Huang, Wei Min
    Lu, Haibao
    Lim, Kok Jiak
    Zhou, Ye
    Wang, Tao Xi
    Gao, Xiang Yang
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 2014, 215 (24) : 2430 - 2436
  • [40] Thermoplastic polyurethanes/polyester/polypropylene composites: Effect of thermoplastic polyurethanes honeycomb structure on acoustic-absorbing and cushioning property
    Li, Ting-Ting
    Lou, Ching-Wen
    Huang, Chen-Hung
    Huang, Chien-Lin
    Lin, Jia-Horng
    JOURNAL OF INDUSTRIAL TEXTILES, 2016, 46 (02) : 578 - 595
12345