Results 271 to 280 of about 1,145,455 (297)
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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 ...
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Stratification in Drying Polymer–Polymer and Colloid–Polymer Mixtures
Langmuir, 2017Drying polymer-polymer and colloid-polymer mixtures were studied using Langevin dynamics computer simulations. Polymer-polymer mixtures vertically stratified into layers, with the shorter polymers enriched near the drying interface and the longer polymers pushed down toward the substrate.
Michael P. Howard +2 more
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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 ...
Juan E. Figueruelo +2 more
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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
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Polymer and composite polymer slot waveguides
SPIE Proceedings, 2014A fully polymer slot Young interferometer operating at 633 nm wavelength was fabricated by using nanoimprint molding method. The phase response of the interference pattern was measured with several concentrations of glucose-water solutions, utilizing both TE and TM polarization states.
Fegadolli, William S. +8 more
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2001
Introduction This chapter is concerned with the thermodynamic aspects of the fusion of binary mixtures of two homopolymers. The structural and morphological features that result from the departure from equilibrium, and their influence on properties, will be discussed in a subsequent chapter. Binary polymer blends present several different situations.
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Introduction This chapter is concerned with the thermodynamic aspects of the fusion of binary mixtures of two homopolymers. The structural and morphological features that result from the departure from equilibrium, and their influence on properties, will be discussed in a subsequent chapter. Binary polymer blends present several different situations.
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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
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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
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SPE Oilfield and Geothermal Chemistry Symposium, 1980
ABSTRACT A variety of vinyl type polymers has been prepared and characterized to compare their viscosity behaviour with "established" technical polymers. Special emphasis is given to fundamental aspects of solution structure with regard to the conformation of a single chain and of chain to chain interaction.
W.M. Kulicke, J. Klein
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ABSTRACT A variety of vinyl type polymers has been prepared and characterized to compare their viscosity behaviour with "established" technical polymers. Special emphasis is given to fundamental aspects of solution structure with regard to the conformation of a single chain and of chain to chain interaction.
W.M. Kulicke, J. Klein
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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,
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2014
The use of viscoelastic materials, such as polymers, constantly increases in the field of nanotechnology. These materials are softer than metallic and inorganic ones, and, because of that, they are easier to deform and wear off. The wear mechanisms occurring for viscoelastic materials are rather complex, and, generally, present more complications for a
D'Acunto M, Dinelli F, Pingue P
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The use of viscoelastic materials, such as polymers, constantly increases in the field of nanotechnology. These materials are softer than metallic and inorganic ones, and, because of that, they are easier to deform and wear off. The wear mechanisms occurring for viscoelastic materials are rather complex, and, generally, present more complications for a
D'Acunto M, Dinelli F, Pingue P
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