Samenvatting
Supramol. polymers form a new class of polymers in which the reversibility of the non-covalent bonds between the monomers gives rise to interesting material properties. Ureido-pyrimidinone mols. strongly dimerize via quadruple hydrogen bonds and bi-functional derivs. form polymers or cyclic structures depending on the pre-organization of the linker and external conditions such as concn. and temp. Bi-functional ureido-pyrimidinone mols. with a meta-phenylene linker aggregate into hexameric cycles, due to pre-organization of the phenylene linker. SANS, viscosity and NMR-diffusion measurements showed that the hexameric cycles self-assemble into cylindrical aggregates, with solvent, concn. and temp. dependent length. These cylindrical aggregates may be used as scaffolds for thermoplastic elastomers, in which the cylinders form the hard-block and the polymer the soft-block. [on SciFinder (R)]
Originele taal-2 | Engels |
---|---|
Titel | Abstracts of Papers 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003 |
Plaats van productie | Washington |
Uitgeverij | American Chemical Society |
Pagina's | POLY-448 |
ISBN van geprinte versie | 0-8412-3872-3 |
Status | Gepubliceerd - 2003 |
Evenement | 225th ACS National Meeting - New Orleans, Verenigde Staten van Amerika Duur: 23 mrt. 2003 → 27 mrt. 2003 |
Congres
Congres | 225th ACS National Meeting |
---|---|
Land/Regio | Verenigde Staten van Amerika |
Stad | New Orleans |
Periode | 23/03/03 → 27/03/03 |
Ander | 225th ACS National Meeting, Spring Meeting, New Orleans, LA, United States, March 23-27, 2003 |