6533b826fe1ef96bd1284f09
RESEARCH PRODUCT
Consequences of linking charged and uncharged monomers to binary copolymers studied in dilute solution. Part I: Viscometric behavior of the homopolymers, the effects of charging, and uncommon salt effects
Bernhard A. WolfMaria BerceaSimona Morariusubject
chemistry.chemical_classificationMolar massAqueous solutionPolymers and PlasticsEthylene oxideIntrinsic viscosityOrganic ChemistryIodideGeneral Physics and AstronomySalt (chemistry)02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical scienceschemistry.chemical_compoundMonomerchemistryPolymer chemistryMaterials ChemistryCopolymer0210 nano-technologydescription
Abstract Intrinsic viscosities, generalized intrinsic viscosities and viscometric interaction parameters were measured for aqueous solutions of poly(ethylene oxide) [PEO], poly(N,N-dimethyl aminoethyl methacrylate) [PR] (uncharged) and for poly{[2-(methacryloyloxy)ethyl] trimethylammonium iodide} [PR+] (charged) within a wide range of molar masses. In this manner it was possible to establish the information required for the study of non-additivity effects upon the formation of binary copolymers from the monomers specified above. The following additional items were of particular interest: The effects of charging PR to PR+ and the composition dependence of the coil overlap in the case of saline (NaCl, CaCl2 and NaI) solvents. NaCl turned out to be much less efficient in shielding the electrostatic interactions than the other salts due to its large tendency to form ion pairs in solution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-03-01 | European Polymer Journal |