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Volumn 42, Issue 5, 2009, Pages 1533-1540

Macromolecular nanocapsule derived from hyperbranched polyethylenimine (HPEI): Mechanism of guest encapsulation versus molecular parameters

Author keywords

[No Author keywords available]

Indexed keywords

AMINO PROTON; AMPHIPHILIC MACROMOLECULES; ANIONIC DYE; CHEMICALLY MODIFIED; CONGO RED; CORE-SHELL; HYPERBRANCHED; HYPERBRANCHED POLYMERS; INVERTED MICELLES; METHYL ORANGE; MOLECULAR PARAMETERS; MOLECULE RECOGNITION; POLYETHYLENIMINE; PROPYLENE OXIDE; SHELL THICKNESS; STRUCTURE FEATURES; STRUCTURE PROPERTY RELATIONSHIPS; THICK SHELLS; UNIMOLECULAR; UNIMOLECULAR MICELLES;

EID: 66549124577     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma8026707     Document Type: Article
Times cited : (56)

References (36)
  • 14
    • 0028218595 scopus 로고
    • (b) Frechet, J. M. J. Science 1994, 263, 1710-1715.
    • (1994) Science , vol.263 , pp. 1710-1715
    • Frechet, J.M.J.1
  • 34
    • 66549097950 scopus 로고    scopus 로고
    • y) means a fraction (x)of the amino protons are derived into hydroxyls and a fraction (y) of amino groups are alkylated by 2-dodecyloxymethyloxirane.
    • y) means a fraction (x)of the amino protons are derived into hydroxyls and a fraction (y) of amino groups are alkylated by 2-dodecyloxymethyloxirane.
  • 35
    • 66549099976 scopus 로고    scopus 로고
    • Quantitative analysis of the ratio of encapsulated MO and CR is impossible because of the featureless UV/vis and signal overlapping of 1 H NMR spectra, but a rough value can be obtained from UV vis spectra because the μmax is sensitive to the ratio of CR/MO. Experimentally, when aqueous CR is shaken with the MO-saturated 7a/ chloroform, the dye exchange will lead to a shift of the aqueous μmax. To learn the μmax (CR/MO) relationship, a simulation experiment is carried out by titration-like addition of aqueous MO to the aqueous CR (the concentration of CR is the same) until the same shift of μmax is reached. It is known the μmax is slightly sensitive to the concentration and medium, so the simulation is carried out under very similar conditions that a relatively countable result can be obtained
    • max is slightly sensitive to the concentration and medium, so the simulation is carried out under very similar conditions that a relatively countable result can be obtained.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.