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

页码：779 / 790

共 50 条

[21] Effect of Stirring Speeds on Microstructure Formation During Thermoplastic Polyurethanes Synthesis
Li, Cong
Cai, Xiaoxia
Shen, Fei
Xu, Hongxing
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 2016, 55 (01): : 1 - 19
[22] Changes in the Properties of Bio-Based Thermoplastic Polyurethanes with Different Chain Extenders
Li, Xiang Xu
Sohn, Mi Hyun
Cho, Ur Ryong
POLYMER-KOREA, 2019, 43 (04) : 621 - 628
[23] Thermoplastic embossing device to probe rheological changes of supercooled metallic liquids during rapid heating
Kosiba, Konrad
REVIEW OF SCIENTIFIC INSTRUMENTS, 2022, 93 (03):
[24] Synthesis and characterization of thermoplastic polyurethanes as binder for novel thermoplastic propellant
Duo, YQ
Tan, HM
Chen, FT
JOURNAL OF APPLIED POLYMER SCIENCE, 2002, 83 (14) : 2961 - 2966
[25] Thermoplastic polyurethanes reinforced with glass fibres
Steinberger, R.
Kunststoffe, German plastics, 1992, 82 (12): : 14 - 16
[26] FATIGUE CUT GROWTH OF THERMOPLASTIC POLYURETHANES
RODRIGUEZ, EL
BASAR, R
KOLYCHECK, EG
TSENG, HS
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 1994, 13 (01) : 2 - 19
[27] THERMOPLASTIC POLYURETHANES - MATERIALS FOR SPECIAL APPLICATION
FLOSSMANN, S
KAUTSCHUK GUMMI KUNSTSTOFFE, 1975, 28 (JAN): : 16 - 16
[28] Dynamic mechanical analysis of thermoplastic polyurethanes
Sánchez-Adsuar, MS
Martin-Martinez, JM
Papon, E
Villenave, JJ
EUROPEAN POLYMER JOURNAL, 1998, 34 (11) : 1599 - 1604
[29] Structures of Hard Phases in Thermoplastic Polyurethanes
Terban, Maxwell W.
Dabbous, Raphael
Debellis, Anthony D.
Poeselt, Elmar
Billinge, Simon J. L.
MACROMOLECULES, 2016, 49 (19) : 7350 - 7358
[30] Utilization of Thermoplastic Polyurethanes in Europe.
Ter Meulen, B.H.
Muanyag Es Gumi/Plastics and Rubber, 1984, 21 (09): : 265 - 270

← 1 2 3 4 5 →