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Polyflavonoid tannins

The acceleration of the hardening reaction [107,108]. This is unsuccessful with the hydrolyzable chestnut tannins used in ref [107] but successful with the use of polyflavonoid tannins such as in Ref. [108]. [Pg.1059]

Pasch, H., Pizzi, A., and Rode, K., MALDI-TOF mass spectrometry of polyflavonoid tannins, Polymer, 42, 7531, 2001. [Pg.130]

Characterization ofLannea coromandelica polyflavonoid tannins by MALDI-TOF-MS... [Pg.1089]

Fig. (8). Possible structural units (A-D) of Lannea coromandelica (stem bark) polyflavonoid tannins, and structures of typical linear-and angular-type trimers. Fig. (8). Possible structural units (A-D) of Lannea coromandelica (stem bark) polyflavonoid tannins, and structures of typical linear-and angular-type trimers.
Motility inhibition and lytic activities of polyflavonoid tannins against zoospores... [Pg.1092]

Morphological changes of zoospores interact with polyflavonoid tannins... [Pg.1093]

The results and eflectiveness of Eqs. (7) were checked also for other, quite dilferent polymers, namely the polycondensates of resordnol-formaldehyde, of melamine urea formaldehyde (MUF), of PF, and of quebracho and pine polyflavonoid tannins hardened with formaldehyde. The comparison of the energies of interaction obtained by measures of TMA deflection and the use of this formula compared well with the results already obtained for their energy of adhesion with crystalline cellulose in previous work [16 10]. It appears, then, that the formula works also for entanglement rather than just cross-linked networks. [Pg.177]

In the reaction of polyflavonoid tannins with formaldehyde two eompetitive reactions are present ... [Pg.572]

Structure of Flavan-3-ol a Repeat Unit Contained in Polyflavonoid Tannin Extracts (source ref. [80])... [Pg.610]

The term natural vegetable tannins is used loosely to define two broad classes of chemical confounds of mainly phenolic nature, namely condensed or polyflavonoid tannins and hydrolysable tannins. The recognized oligomeric nature of condensed tannins [4-7] contrasts with the allegedly nonpolymmc nature of hydrolysable tannins [5-7]. [Pg.181]

In condensed polyflavonoid tannin molecules, the A-rings of the constituent flavonoid units retain only one highly reactive nucleophilic centre, the remainder accommodating the interflavonoid bonds. Resorcinolic A-rings (wattle) show... [Pg.186]

Pizzi A, Cameron F A, Eaton N J 1986 The tridimensional structure of polyflavonoid tannins by conformational analysis. J Macromol Sci Chem A23 515-540... [Pg.647]

See other pages where Polyflavonoid tannins is mentioned: [Pg.1088]    [Pg.1089]    [Pg.1092]    [Pg.1092]    [Pg.1093]    [Pg.1093]    [Pg.1094]    [Pg.1094]    [Pg.1095]    [Pg.1111]    [Pg.571]    [Pg.572]    [Pg.579]    [Pg.604]    [Pg.902]    [Pg.906]    [Pg.609]    [Pg.611]    [Pg.184]    [Pg.187]    [Pg.192]    [Pg.193]    [Pg.208]    [Pg.209]    [Pg.209]   
See also in sourсe #XX -- [ Pg.1090 , Pg.1092 ]



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