Biomimetic cooperative interactions of dried cross-linked poly(N-6-aminohexylacrylamide) with binary mixtures of solvent vapors.
Biomimetic cooperativity of hydration effect and effect of ethanol favorable for binding of bad organic sorbates were observed for their vapor sorption by cross-linked poly(N-6-aminohexylacrylamide) (PNAHAA) in the absence of liquid phase. The vapor sorption isotherms were determined for these systems by the static method of gas chromatographic headspace analysis at 298 K. The hydration above 0.09-0.13 g of H(2)O/(g of polymer) gives a cooperative increase in the PNAHAA binding affinity for benzene, cyclohexane, dioxane, and propanols up to a level which does not change by further hydration, indicating the polymer antiplasticization. Bad sorbates (dioxane, benzene) were observed to have a biomimetic cooperative influence on the binding of ethanol by the dried PNAHAA. This cooperativity does not occur in ternary systems with good nonhydroxylic sorbate acetonitrile.
Gorbatchuk
Valery V
VV
Institute of Chemistry, Kazan State University, Kremlevskaya 18, Kazan 420008, Russia. valery.gorbatchuk@ksu.ru
Mironov
Nikolay A
NA
Solomonov
Boris N
BN
Habicher
Wolf D
WD
D000097:Acetonitriles / Q000737:chemistry; D000178:Acrylamides / Q000138:chemical synthesis* / Q000737:chemistry; D000327:Adsorption; D001554:Benzene / Q000737:chemistry; D032701:Biomimetics; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003432:Cross-Linking Reagents / Q000737:chemistry*; D003890:Desiccation; D004146:Dioxanes / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D012997:Solvents / Q000737:chemistry*; D013696:Temperature; D014835:Volatilization; D014867:Water / Q000737:chemistry
D000097:Acetonitriles; D000178:Acrylamides; D003432:Cross-Linking Reagents; D004146:Dioxanes; D011108:Polymers; D012997:Solvents; C496058:poly(N-6-aminohexylacrylamide); D014867:Water; D000431:Ethanol; D001554:Benzene; C025223:1,4-dioxane