Results 241 to 250 of about 796,970 (296)
Some of the next articles are maybe not open access.
Polymer-Polymer Phase Behavior
Science, 1991Different polymers can be combined into a single material in many ways, which can lead to a wide range of phase behaviors that directly influence the associated physical properties and ultimate applications. Four factors control polymer-polymer phase behavior: choice of monomers, molecular architecture, composition, and molecular size. Current theories
openaire +2 more sources
Chemical Reviews, 2001
Various aspects of supramolecular polymer were discussed. The hydrogen bonding enforced by liquid crystallinity and phase separation in the supramolecuar polymers were examined. The supramolecular polymers, based on discotic molecules, such as tryphenylenes, pthalocyanines and porphyrins were also elaborated.
L. Brunsveld +3 more
openaire +3 more sources
Various aspects of supramolecular polymer were discussed. The hydrogen bonding enforced by liquid crystallinity and phase separation in the supramolecuar polymers were examined. The supramolecular polymers, based on discotic molecules, such as tryphenylenes, pthalocyanines and porphyrins were also elaborated.
L. Brunsveld +3 more
openaire +3 more sources
Electroluminescence of a Polymer Film with a Polymer/Polymer Interface
JETP Letters, 2019The effect of a two-dimensional quantum-confined structure formed at a polymer/polymer interface on the radiative recombination of excitons (i.e., electroluminescence) is investigated. It is shown that the implementation of such a structure in a polymer film leads to an increase in the emission intensity by more than two orders of magnitude and a ...
S. K. Lezhnev +5 more
openaire +1 more source
Polymer/Solvent and Polymer/Polymer Interaction Studies
1979Abstract : The technique of gas chromatography has been used to investigate the solution properties of many solvents with a propargyl (acetylene-terminated) sulfone (PATS). In this case, unlike previous work on the RADEL polysulfone, no correlation between the strength of the specific interaction parameter and the solubility as determined from beaker ...
Ted A. Powell +4 more
openaire +1 more source
Polymer-polymer interaction parameters in solvent/polymer/polymer ternary systems
European Polymer Journal, 1981Abstract Empirical equations defining the relationships between b23 and χ23 interaction parameters for the ternary systems toluene (1)/poly(dimethylsiloxane), PDMS, (2)/polystyrene, PS, (3) and benzene (1)/PDMS(2)/PS(3) have been determined. The dependences of both interaction parameters on the mean molecular weights of the macromolecular components ...
V. Soria, J.E. Figueruelo, A. Campos
openaire +1 more source
Polymer structure and dynamics, and polymer-polymer interactions
Advances in Colloid and Interface Science, 1996Abstract Special architectures can be constructed from macromolecular building blocks by placing functional groups at well defined positions on the polymeric object. These functional groups can be linked together either by chemical reaction or by non-covalent bonds. Often, however, the position of the functional groups is not sufficiently well known,
openaire +1 more source
Polymers and Polymer Solutions
1991Abstract The observation of polymers and the work devoted to their synthesis goes back to the beginning of the nineteenth century. However, the definitions given to them varied until 1920. Flory has shown that the many incidents which occurred during the formation of the basic notions are of great interest even now, and a few notable ...
Jacques des Cloizeaux, Gerard Jannink
openaire +1 more source
Polymer-Polymer Interdiffusion
MRS Proceedings, 1984AbstractInterdiffusion of polymer chains plays an important role in establishing good adhesion at polymer interfaces as well as in the kinetics of phase separation and mixing in polymer blends. Reptation, a process in which a given linear chain crawls along a primitive path defined by the topological constraints due to the surrounding chains, is ...
openaire +1 more source