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Hydrogen bonds in polymers

Koberstein J.T., Gancarz I., and Clarke T.C., The effect of morphological transition on hydrogen bonding in PU Preliminary results of simultaneous DSC-FTIR experiments, J. Polym. Sci. B, 24, 2487, 1986. Skrovanek D.J., Painter P.C., and Coleman M.M., Hydrogen bonding in polymers 2. Infra red temperature studies on nylon 11, Macromolecules, 19, 699, 1986. [Pg.160]

AM Lichkus, PC Painter, MM Coleman. Hydrogen bonding in polymer blends. 5. Blends involving polymers containing methacrylic acid and oxazolime groups. Macromolecules 21 2636-2641, 1988. [Pg.585]

Before discussing the details of hydrogen bonding in different polymer systems and how it affects their spectra it will be useful to review the definition of hydrogen bond. In polymer systems hydrogen bonds can be... [Pg.97]

The orderly and repetitive arrangement of hydrogen bonds in polymers determines their shape. The extended structures of cellulose and of peptides in a j8-sheet allow for the formation of strong fibers through intrachain H bonding. [Pg.46]

Effect of Hydrogen Bonding in Polymer Blends on Nano-Morphology I 223... [Pg.223]

Hildebrand solubility parameter Hansen three-dimensional solubility parameter Hydrogen bonding in polymer blends Association model Combinatorial entropy Chemical and physical forces Equilibrium rate constant... [Pg.87]

Coleman and Painter [4-6] consider hydrogen bonding as the central strong interaction in polymers that cause the observed phase behavior and miscibility. They have used Fourier transform infrared (FTIR) spectroscopy to study the hydrogen bonding in polymer blends in systems such as polyamides and polyurethanes. A large class... [Pg.89]

Another useful technique for the qualitative and quantitative characterization of brushes inside porous membranes is transmission mode Fourier transform infrared (FTIR) spectroscopy [22,29]. If the membrane material does not appreciably adsorb light near the characteristic frequency of the C-H stretching peak, which is the footprint of carbon hydrogen bonds in polymer chains, then the measured FTIR absorbance peak can be used (after proper calibration) for the calculation of the amoimt of polymer inside the pore. As in the case of gravimetric analysis, transmission FTIR measurements are performed on dried solvent-free samples where the grafted chains are collapsed on the iimer pore surface. [Pg.126]

These techniques are complimentary to each other, with each providing different information on structural details, polymer characterisation, structure and construction of existing and new polymers, measurement of polymer and copolymer composition, effect of catalysts and polymerisation, conditions on structure of polymers, hydrogen bonding in polymers, cis-trans measurement, optimum conditions for polymer synthesis, effect of polymer structure on thermal and crystallisation properties, effect of comonomer ratio on polymer structure and properties (for example, thermal and oxidative stability), tensile properties, and studies of competing reactions during polymerisation. [Pg.405]

M. F. Roberts and S. A. Jenekhe, Sitc-spectfle reversible scission id hydrogen bonds in polymers. An investigation of polyamides and their Lewis acid-base complexes by infrared apectroacopy, Macramoleatl 24-J142 (1991V... [Pg.322]

D. 1. Sktovanck. P. C. Painter, and M. M. Coleman, Hydrogen bonding in polymers. 2 Infrared ttmipcrature studies of nylon-11. Macromolecules 79 699 (1986). [Pg.322]

The most detailed experimental study of hydrogen bonding in polymer blends involves the work of Coleman, Painter and coworkers [114-125] and is also presented in their book [92] as noted above. [Pg.37]

Kischel, M., Kisters, D., Strobe, G., and Veeman, W.S. (1998) Dynamic infrared spectroscopy, a tool to detect hydrogen bonds in polymers Fur. Polym. J., 34, 1571. [Pg.118]

Coleman M M, Skrovanek J and Painter P C (1986) Hydrogen bonding in polymers further infrared temperature studies of polyamides, Makromol Chem Macromol Symp 5 21-33. [Pg.281]

SKROVANEK D j, HOWE s E, PAINTER p c and COLEMAN M M, Hydrogen bonding in polymers infrared temperature studies of an amorphous polyamide , Macromolecules, 1985,18,1676-1683... [Pg.218]

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See also in sourсe #XX -- [ Pg.157 , Pg.158 ]



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