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Urethane-based pseudo poly

Applications of Ester-Based "Pseudo" 12.6 Urethane-Based "Pseudo" Poly(Amino Acids) 213... [Pg.207]

URETHANE-BASED "PSEUDO" POLY(AMINO ACIDS)... [Pg.213]

The basic reaction scheme for formulating urethane-based pseudo poly(amino acids) requires a reaction of a diisocyanate with a diol in the presence of stannous oc-toate as a catalyst. Depending on their properties, either the diol or the diisocyanate could serve as the hard segment (h) or soft segment (s) as reported in Table 12.4. Several poly(urethanes) also include a diol- or diamine-based chain extender to yield a higher molecular weight product. [Pg.214]

The miscibility between poly (vinyl chloride) and poly-urethanes based on poly (oxytetramethylene) glycol can be improved by introducing opposite charge groups to form ionic bonds. The improvement in miscibility from ionic bonds between the two polymer systems provided the best chance for interpene-tration between the linear chains of VMCC and the PU networks in order to obtain good physical properties of the ionomer pseudo-IPN coatings from PU and VMCC. [Pg.322]

Poly(Amino Acids) 210 12.6.1 Synthesis of Urethane-Based "Pseudo" ... [Pg.207]

See other pages where Urethane-based pseudo poly is mentioned: [Pg.214]    [Pg.214]    [Pg.671]    [Pg.208]    [Pg.747]    [Pg.156]    [Pg.736]   
See also in sourсe #XX -- [ Pg.213 , Pg.214 , Pg.214 ]



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