HYDROPHILIC EFFECT OF POLYETHER COMPONENT ON BLOOD COMPATIBILITY OF SEGMENTED POLY(URETHANEUREAS).

Atsushi Takahara, Jun ichi Tashita, Tisato Kajiyama, Motowo Takayanagi

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

Segmented poly(urethaneureas) (SPUU) were synthesized from polyether diols having various surface free energy as soft segments, with molecular weights varying from 200 to 4,000. The hard segment of SPUU was composed of ethylene diamine and 4,4 prime -diphenylmethane diisocyanate. Characterizations of SPUU were performed using Differential Scanning Calorimetry (DSC), dynamic viscoelastic, X-ray photoelectron spectroscopic (XPS), and water content measurements. The blood compatibility of SPUU was evaluated from the number of adhered and deformed platelets on the film surfaces of SPUU. The number of adhered and deformed platelets on the film surface of SPUU shows a minimum at a specific molecular weight of polyether, depending on the surface free energy of polyether. It was concluded from the structural analysis and the morphological observation of adhered platelets that the blood compatibility of SPUU was affected mainly by domain size, the degree of microphase separation, and surface free energy of each segment.

元の言語英語
ページ(範囲)16-34
ページ数19
ジャーナルInternational Progress in Urethanes
4
出版物ステータス出版済み - 1985

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Polyethers
Blood
Platelets
Free energy
Molecular weight
Microphase separation
Photoelectrons
Structural analysis
Water content
Differential scanning calorimetry
Ethylene
X rays

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

HYDROPHILIC EFFECT OF POLYETHER COMPONENT ON BLOOD COMPATIBILITY OF SEGMENTED POLY(URETHANEUREAS). / Takahara, Atsushi; Tashita, Jun ichi; Kajiyama, Tisato; Takayanagi, Motowo.

:: International Progress in Urethanes, 巻 4, 1985, p. 16-34.

研究成果: ジャーナルへの寄稿記事

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abstract = "Segmented poly(urethaneureas) (SPUU) were synthesized from polyether diols having various surface free energy as soft segments, with molecular weights varying from 200 to 4,000. The hard segment of SPUU was composed of ethylene diamine and 4,4 prime -diphenylmethane diisocyanate. Characterizations of SPUU were performed using Differential Scanning Calorimetry (DSC), dynamic viscoelastic, X-ray photoelectron spectroscopic (XPS), and water content measurements. The blood compatibility of SPUU was evaluated from the number of adhered and deformed platelets on the film surfaces of SPUU. The number of adhered and deformed platelets on the film surface of SPUU shows a minimum at a specific molecular weight of polyether, depending on the surface free energy of polyether. It was concluded from the structural analysis and the morphological observation of adhered platelets that the blood compatibility of SPUU was affected mainly by domain size, the degree of microphase separation, and surface free energy of each segment.",
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AU - Kajiyama, Tisato

AU - Takayanagi, Motowo

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