Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols

Ken Kojio, Machiko Sakai, Suguru Motokucho, Mutsuhisa Furukawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polycarbonate-based polyurethane elastomers (PUEs) were prepared from poly(carbonate) (PC) glycol baring the number of methylene unit of 3-10. Aggregation structure and mechanical properties of these PUEs were investigated by differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD) and dynamic viscoelatic measurement. The difference in the glass transition temperature of polyols (ΔTg,polyols) and Tg,PUEs (ΔTg) increased with increasing methylene chain length, indicating the degree of microphase separation became weaker with increasing methylene chain length. Magnitude of dynamic storage modulus (E') around rubbery plateau region in the E' curve decreased with increasing methylene chain length due to the change in microphase-separated state and flexibility of the PC glycols.

Original languageEnglish
Title of host publication55th SPSJ Symposium on Macromolecules
Pages3379-3380
Number of pages2
Volume55
Edition2
Publication statusPublished - 2006
Externally publishedYes
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: Sep 20 2006Sep 22 2006

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period9/20/069/22/06

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Glycols
Chain length
Elastomers
Polyurethanes
Agglomeration
Mechanical properties
Microphase separation
Polyols
Polycarbonates
Carbonates
Differential scanning calorimetry
Elastic moduli
X ray diffraction

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Kojio, K., Sakai, M., Motokucho, S., & Furukawa, M. (2006). Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols. In 55th SPSJ Symposium on Macromolecules (2 ed., Vol. 55, pp. 3379-3380)

Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols. / Kojio, Ken; Sakai, Machiko; Motokucho, Suguru; Furukawa, Mutsuhisa.

55th SPSJ Symposium on Macromolecules. Vol. 55 2. ed. 2006. p. 3379-3380.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kojio, K, Sakai, M, Motokucho, S & Furukawa, M 2006, Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols. in 55th SPSJ Symposium on Macromolecules. 2 edn, vol. 55, pp. 3379-3380, 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan, 9/20/06.
Kojio K, Sakai M, Motokucho S, Furukawa M. Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols. In 55th SPSJ Symposium on Macromolecules. 2 ed. Vol. 55. 2006. p. 3379-3380
Kojio, Ken ; Sakai, Machiko ; Motokucho, Suguru ; Furukawa, Mutsuhisa. / Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols. 55th SPSJ Symposium on Macromolecules. Vol. 55 2. ed. 2006. pp. 3379-3380
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