## Molecular basis of polymer networks: proceedings of the 5th IFF-Ill Workshop, Jülich, Fed. Rep. of Germany, October 5-7, 1988The contributors to this volume appraise our knowledge of the molecular physics of polymer networks and pinpoint areas of research where significant advances can be made using new theories and techniques. They describe both theoretical approaches, based on new theoretical concepts and original network models, and recent experimental investigations using SANS, 2H NMR or QELS. These new techniques provide precise information about network behaviour at the molecular level. Reported results of the application of these and more traditional techniques include the microscopic conformation and properties of permanent networks or gels formed by specific interchain interactions, the behaviour of elastomer liquid crystals, and the static and dynamic properties of star-branched polymers. |

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Page 140

The local monomer

Mandelkern-Scheraga parameter is close to that of undrained spheres. In a theta-

solvent the micronetworks are selfsimilar. The contraction is the same on all

length scales ...

The local monomer

**density**is increased up to a factor of six. The Flory-Mandelkern-Scheraga parameter is close to that of undrained spheres. In a theta-

solvent the micronetworks are selfsimilar. The contraction is the same on all

length scales ...

Page 141

Unlike usual networks, where we expect an increase of the storage modulus with

increasing cross- linking

In all cases, G' parallels G" over up to five decades. The moduli can be ct ...

Unlike usual networks, where we expect an increase of the storage modulus with

increasing cross- linking

**density**, G' decreases in the case of the micr onetworks .In all cases, G' parallels G" over up to five decades. The moduli can be ct ...

Page 187

They demonstrate that the reduced

0, is a very significant parameter in polymer networks and, as this parameter

increases, the noncovalent EV contribution to the deviatoric stress becomes ...

They demonstrate that the reduced

**density**p, or equivalently the packing fraction0, is a very significant parameter in polymer networks and, as this parameter

increases, the noncovalent EV contribution to the deviatoric stress becomes ...

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### Contents

Remarks | 2 |

Statistical Mechanics of dDimensional Polymer Networks and Exact | 17 |

FluctuationInduced Deformation Dependence of the FloryHuggins | 35 |

Copyright | |

12 other sections not shown

### Other editions - View all

Molecular Basis of Polymer Networks: Proceedings of the 5th IFF-ILL Workshop ... Artur Baumgärtner,Claude E. Picot No preview available - 2011 |

### Common terms and phrases

42 Molecular Basis anisotropy Basis of Polymer Bastide behaviour C.E. Picot calculated carrageenan chain segments Chem chemical chemical potential configuration conformation constant constraints corresponding crosslinking curves deformation density dependence deswelling deuterated distribution dynamics effect elastic free energy elementary strand elongation entanglements entropy equation equilibrium excluded volume experimental experiments exponent factor Flory Flory-Huggins Flory-Huggins theory fluctuations fractal dimension free chains free energy Gaussian gelation Gennes Heidelberg 1989 increases interaction parameter isotropic labelled paths length linear Macromolecules macroscopic measurements melt modulus molecular weight monomers network chains neutron scattering observed obtained P.G. de Gennes PDMS chains phantom network Phys polybutadiene polyelectrolyte Polymer Networks Editors polymeric fractals Proceedings in Physics radius of gyration ratio Rouse model rubber elasticity sample scaling solution solvent Springer Proceedings Springer-Verlag Berlin star molecules star polymers structure swelling swollen temperature theory topological uniaxial values vector Vilgis viscoelastic volume fraction