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- W2008125526 abstract "Infrared spectra have been measured in the 3600-cm−1 region for two hydrogen-bonding systems containing polymeric proton acceptors in carbon tetrachloride solution. Methanol was the proton donor in both systems. Proton acceptors were polypropylene oxide of molecular weight 450 and 1000, and polypropylene glycol of molecular weight 1025 and 2025. Equilibrium constants were obtained at 10° intervals from 20° to 60°C. The enthalpies of hydrogen-bond formation were −4.0±0.7, −4.7±0.8, −4.1±0.5, and −4.5±0.5 kcal/g-mole. Equilibrium constants for hydrogen bonding between methanol and polypropylene glycol are markedly larger than those observed for polypropylene oxide of comparable molecular weight. This disparity, however, decreases with increasing polyglycol molecular weight, i.e., with decreasing ratio of glycol—hydroxyl to ether—oxygen groups." @default.
- W2008125526 created "2016-06-24" @default.
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- W2008125526 date "1966-01-15" @default.
- W2008125526 modified "2023-10-17" @default.
- W2008125526 title "Infrared Study of Hydrogen Bonding between Polymers and Methanol: Polypropylene Oxide and Polypropylene Glycol" @default.
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- W2008125526 doi "https://doi.org/10.1063/1.1726754" @default.
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