Abstract
β-Cyclodextrin (β-CD) polymers were prepared by cross-linking β-CD with maleic anhydride (MA) in anhydrous N,N-dimethyl formamide (DMF) in the presence of NaH. The weight-average molecular weight (Mw) and the chemical structure of the polymers were determined using high performance size exclusion chromatography (HPSEC) with refractive index (RI) and multiangle laser-light scattering (MALLS) detectors, and 1H NMR spectroscopy. The molecular weight of the polymer increased as the reaction temperature was raised. With a reaction of 4 h at 130 °C at a molar ratio of 1:7:7 for β-CD:NaH:MA, the reaction products were water-insoluble, and contained major polymer fractions with Mw greater than 200 kDa. Smaller and water-soluble polymer fractions were produced at 100 °C or lower reaction temperature. 1H-NMR spectra revealed that the CD polymers contained both mono- and diesters of butenedioic acid, and diesters became prevalent as the reaction time and temperature were raised.
| Original language | English |
|---|---|
| Pages (from-to) | 59-63 |
| Number of pages | 5 |
| Journal | Carbohydrate Polymers |
| Volume | 42 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2000 May 1 |
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ASJC Scopus subject areas
- Food Science
- Biochemistry
Cite this
Polymerization of β-cyclodextrin with maleic anhydride and structural characterization of the polymers. / Girek, Tomasz; Shin, Dong Hoon; Lim, Seung Taik.
In: Carbohydrate Polymers, Vol. 42, No. 1, 01.05.2000, p. 59-63.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Polymerization of β-cyclodextrin with maleic anhydride and structural characterization of the polymers
AU - Girek, Tomasz
AU - Shin, Dong Hoon
AU - Lim, Seung Taik
PY - 2000/5/1
Y1 - 2000/5/1
N2 - β-Cyclodextrin (β-CD) polymers were prepared by cross-linking β-CD with maleic anhydride (MA) in anhydrous N,N-dimethyl formamide (DMF) in the presence of NaH. The weight-average molecular weight (Mw) and the chemical structure of the polymers were determined using high performance size exclusion chromatography (HPSEC) with refractive index (RI) and multiangle laser-light scattering (MALLS) detectors, and 1H NMR spectroscopy. The molecular weight of the polymer increased as the reaction temperature was raised. With a reaction of 4 h at 130 °C at a molar ratio of 1:7:7 for β-CD:NaH:MA, the reaction products were water-insoluble, and contained major polymer fractions with Mw greater than 200 kDa. Smaller and water-soluble polymer fractions were produced at 100 °C or lower reaction temperature. 1H-NMR spectra revealed that the CD polymers contained both mono- and diesters of butenedioic acid, and diesters became prevalent as the reaction time and temperature were raised.
AB - β-Cyclodextrin (β-CD) polymers were prepared by cross-linking β-CD with maleic anhydride (MA) in anhydrous N,N-dimethyl formamide (DMF) in the presence of NaH. The weight-average molecular weight (Mw) and the chemical structure of the polymers were determined using high performance size exclusion chromatography (HPSEC) with refractive index (RI) and multiangle laser-light scattering (MALLS) detectors, and 1H NMR spectroscopy. The molecular weight of the polymer increased as the reaction temperature was raised. With a reaction of 4 h at 130 °C at a molar ratio of 1:7:7 for β-CD:NaH:MA, the reaction products were water-insoluble, and contained major polymer fractions with Mw greater than 200 kDa. Smaller and water-soluble polymer fractions were produced at 100 °C or lower reaction temperature. 1H-NMR spectra revealed that the CD polymers contained both mono- and diesters of butenedioic acid, and diesters became prevalent as the reaction time and temperature were raised.
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U2 - 10.1016/S0144-8617(99)00138-1
DO - 10.1016/S0144-8617(99)00138-1
M3 - Article
AN - SCOPUS:0033904006
VL - 42
SP - 59
EP - 63
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
SN - 0144-8617
IS - 1
ER -