Journal article
Morphology control of segmented polyurethanes by crystallization of hard and soft segments
Polymer (Guilford), v 51(10), pp 2191-2198
2010
Abstract
Segmented polyurethanes (SPUs) have been designed with controlled hard to soft segment ratios. The confinement effect of the SPU blocks is induced by phase separation of the SPU segments and has been harnessed to selectively control crystallization. Hard segment (HS) concentrations greater than 50
wt.% allowed for the study of morphological changes and mechanical properties associated with confinement of the soft segment (SS). It was observed that crystallization temperature and normalized percent crystallinity were reduced with increasing HS content, creating a largely amorphous PEG SS at ambient temperature. High temperature annealing further confined the SS because the HS had more time to crystallize, which increased confinement. Considerable insight has been gained through the manipulation and characterization of the SS and HS, in an SPU, towards the design of impact absorbing and structural materials.
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Details
- Title
- Morphology control of segmented polyurethanes by crystallization of hard and soft segments
- Creators
- Matthew A Hood - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, United StatesBingbing Wang - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, United StatesJames M Sands - Army Research Laboratory, Aberdeen Proving Ground, MD 21005, United StatesJohn J La Scala - Army Research Laboratory, Aberdeen Proving Ground, MD 21005, United StatesFrederick L Beyer - Army Research Laboratory, Aberdeen Proving Ground, MD 21005, United StatesChristopher Y Li - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, United States
- Publication Details
- Polymer (Guilford), v 51(10), pp 2191-2198
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000277190900011
- Scopus ID
- 2-s2.0-77951135957
- Other Identifier
- 991014878195104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Polymer Science