6533b836fe1ef96bd12a1208

RESEARCH PRODUCT

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Christopher HilgerReimund Stadler

subject

chemistry.chemical_classificationPolybutadienechemistryChain (algebraic topology)Hydrogen bondCovalent bondEnthalpyPolymer chemistrySupramolecular chemistryPolymerThermoplastic elastomer

description

Thermoanalytical studies on an order-disorder transition resulting from supramolecular organization of hydrogen bond motifs in an unpolar (polymer-) matrix are reported. Functional groups having two potential sites for hydrogen bonding (4-carboxyphenylarazole) are located statistically along the polybutadiene backbone. Multistep hydrogen bond formation leads to the formation of association chains whose lengths can be controlled by addition of monofunctional groups (phenylurazole) like in conventional stepgrowth polymers. The association chain length is estimated from the variation of transition enthalpy and «melting» temperature

https://doi.org/10.1002/macp.1991.021920406