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Volumn 43, Issue 4, 2010, Pages 1706-1713

Formation of side-chain hetero-polypseudorotaxane composed of α- and β-cyclodextrins with a water-soluble polymer bearing two recognition sites

Author keywords

[No Author keywords available]

Indexed keywords

CDS; CIS ISOMERS; OLIGO(ETHYLENE GLYCOL); POLYPSEUDOROTAXANES; RECOGNITION SITE; SIDE CHAINS; SIDE-CHAIN; SIDE-CHAIN POLYROTAXANE; WATERSOLUBLE POLYMERS;

EID: 77249163649     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma902712u     Document Type: Article
Times cited : (37)

References (51)
  • 1
    • 0004053611 scopus 로고
    • 2nd ed.; Wiley & Sons: New York
    • (a) Voet, D.; Voet, J. G. Biochemistry, 2nd ed.; Wiley & Sons: New York, 1995.
    • (1995) Biochemistry
    • Voet, D.1    Voet, J.G.2
  • 2
    • 0004155427 scopus 로고
    • 4th ed.; W.H. Freeman: New York
    • (b) Stryer, L. Biochemistry, 4th ed.; W.H. Freeman: New York, 1995.
    • (1995) Biochemistry
    • Stryer, L.1
  • 33
    • 77249089523 scopus 로고    scopus 로고
    • Li, S.; Taura, D.; Hashidzume, A.; Takashima, Y.; Yamaguchi, H.; Harada, A., to be published
    • Li, S.; Taura, D.; Hashidzume, A.; Takashima, Y.; Yamaguchi, H.; Harada, A., to be published.
  • 49
    • 77249098440 scopus 로고    scopus 로고
    • note
    • max = 326 nm) for the model compound (OEG-Azo), it was difficult to discuss the aggregation of the trans-Azo moieties in 1 in the absence of a-CD from, the UV - vis absorption spectra. However, we observed the NMR signals due to the Azo moieties in 1 became sharper upon addition of α-CD, indicative of association of the trans-Azo moieties in 1 in the absence of α-CD.
  • 50
    • 77249154307 scopus 로고    scopus 로고
    • note
    • It may be possible to isolate polyrotaxane of 1 with a-CD after photoisomerization by size exclusion chromatography or dialysis. However, it is known that the as-Azo moiety is isomerized back to the trans isomer not only under visible light irradiation but also by a thermal, process. Thus, we would not try to isolate the polyrotaxane by removing excess a-CD because we would like to maintain the cw-Azo content as high as possible.
  • 51
    • 77249154848 scopus 로고    scopus 로고
    • 7 and Cis-Azo Moieties Were Roughly Estimated to Be Ca. 0.7 and 0.8, Respectively, under the Present Conditions, Indicating That the Main Species Is the Hetero-polypseudorotaxane
    • 7 and cis-Azo moieties were roughly estimated to be ca. 0.7 and 0.8, respectively, under the present conditions, indicating that the main species is the hetero-polypseudorotaxane.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.