Complementary SAXS and SANS for structural characteristics of a polyurethethane elastomer of low hard-segment content

Ya Sen Sun; U. Ser Jeng; Yu San Huang; Keng S. Liang; Tsang Lang Lin; Cheng Si Tsao

doi:10.1016/j.physb.2006.06.093

Complementary SAXS and SANS for structural characteristics of a polyurethethane elastomer of low hard-segment content

Ya Sen Sun, U. Ser Jeng, Yu San Huang, Keng S. Liang, Tsang Lang Lin, Cheng Si Tsao

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A polyurethane (PU) elastomer film based on segmented poly(tetramethylene oxide) (PTMO) has been studied using wide-angle X-ray scattering (WAXS), and small-angle X-ray and neutron scattering (SAXS and SANS). The broad WAXS peaks measured for the PU elastomer reveal a low crystallinity of the soft segments PTMO and no crystalline domains for the hard segments, methylene bis(4-isocynatobenzene) (MDI), at 20 °C. Whereas small-angle scattering indicates the existence of hard-segment-rich aggregates. Using the contrast variation provided by the SANS and SAXS, we have extracted detailed structural information of the aggregates, including the shape, size, and the aggregation numbers.

Original language	English
Pages (from-to)	650-652
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	385-386 I
DOIs	https://doi.org/10.1016/j.physb.2006.06.093
State	Published - 27 Nov 2006

Keywords

Aggregation
Polyurethane
SAXS
SNAS

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10.1016/j.physb.2006.06.093

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title = "Complementary SAXS and SANS for structural characteristics of a polyurethethane elastomer of low hard-segment content",

abstract = "A polyurethane (PU) elastomer film based on segmented poly(tetramethylene oxide) (PTMO) has been studied using wide-angle X-ray scattering (WAXS), and small-angle X-ray and neutron scattering (SAXS and SANS). The broad WAXS peaks measured for the PU elastomer reveal a low crystallinity of the soft segments PTMO and no crystalline domains for the hard segments, methylene bis(4-isocynatobenzene) (MDI), at 20 °C. Whereas small-angle scattering indicates the existence of hard-segment-rich aggregates. Using the contrast variation provided by the SANS and SAXS, we have extracted detailed structural information of the aggregates, including the shape, size, and the aggregation numbers.",

keywords = "Aggregation, Polyurethane, SAXS, SNAS",

author = "Sun, {Ya Sen} and Jeng, {U. Ser} and Huang, {Yu San} and Liang, {Keng S.} and Lin, {Tsang Lang} and Tsao, {Cheng Si}",

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T1 - Complementary SAXS and SANS for structural characteristics of a polyurethethane elastomer of low hard-segment content

AU - Sun, Ya Sen

AU - Jeng, U. Ser

AU - Huang, Yu San

AU - Liang, Keng S.

AU - Lin, Tsang Lang

AU - Tsao, Cheng Si

PY - 2006/11/27

Y1 - 2006/11/27

N2 - A polyurethane (PU) elastomer film based on segmented poly(tetramethylene oxide) (PTMO) has been studied using wide-angle X-ray scattering (WAXS), and small-angle X-ray and neutron scattering (SAXS and SANS). The broad WAXS peaks measured for the PU elastomer reveal a low crystallinity of the soft segments PTMO and no crystalline domains for the hard segments, methylene bis(4-isocynatobenzene) (MDI), at 20 °C. Whereas small-angle scattering indicates the existence of hard-segment-rich aggregates. Using the contrast variation provided by the SANS and SAXS, we have extracted detailed structural information of the aggregates, including the shape, size, and the aggregation numbers.

AB - A polyurethane (PU) elastomer film based on segmented poly(tetramethylene oxide) (PTMO) has been studied using wide-angle X-ray scattering (WAXS), and small-angle X-ray and neutron scattering (SAXS and SANS). The broad WAXS peaks measured for the PU elastomer reveal a low crystallinity of the soft segments PTMO and no crystalline domains for the hard segments, methylene bis(4-isocynatobenzene) (MDI), at 20 °C. Whereas small-angle scattering indicates the existence of hard-segment-rich aggregates. Using the contrast variation provided by the SANS and SAXS, we have extracted detailed structural information of the aggregates, including the shape, size, and the aggregation numbers.

KW - Aggregation

KW - Polyurethane

KW - SAXS

KW - SNAS

UR - http://www.scopus.com/inward/record.url?scp=33751400142&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2006.06.093

DO - 10.1016/j.physb.2006.06.093

M3 - 期刊論文

AN - SCOPUS:33751400142

VL - 385-386 I

SP - 650

EP - 652

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -

Complementary SAXS and SANS for structural characteristics of a polyurethethane elastomer of low hard-segment content

Abstract

Keywords

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