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

Ken Kojio; Machiko Sakai; Suguru Motokucho; Mutsuhisa Furukawa

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

Ken Kojio, Machiko Sakai, Suguru Motokucho, Mutsuhisa Furukawa

Research output: Contribution to conference › Paper › peer-review

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 (ΔT_g,polyols) and T_g,PUEs (ΔT_g) 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 language	English
Pages	3379-3380
Number of pages	2
Publication status	Published - 2006
Externally published	Yes
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: Sept 20 2006 → Sept 22 2006

Other

Other	55th Society of Polymer Science Japan Symposium on Macromolecules
Country/Territory	Japan
City	Toyama
Period	9/20/06 → 9/22/06

All Science Journal Classification (ASJC) codes

Engineering(all)

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title = "Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols",

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.",

author = "Ken Kojio and Machiko Sakai and Suguru Motokucho and Mutsuhisa Furukawa",

year = "2006",

language = "English",

pages = "3379--3380",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

}

TY - CONF

T1 - Aggregation structure and mechanical properties of polycarbonbate (PC) glycols and polyurethanes incorporating PC glycols

AU - Kojio, Ken

AU - Sakai, Machiko

AU - Motokucho, Suguru

AU - Furukawa, Mutsuhisa

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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UR - http://www.scopus.com/inward/citedby.url?scp=33846147315&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33846147315

SP - 3379

EP - 3380

T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -

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

Abstract

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All Science Journal Classification (ASJC) codes

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