## 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 21

In three-dimensions (3D) and only in 3D, closed polymer lines can make knots,

and the space of configurations of a network can be divided into non-equivalent

In three-dimensions (3D) and only in 3D, closed polymer lines can make knots,

and the space of configurations of a network can be divided into non-equivalent

**topological**classes (Fig. 3). Our scaling theory (1) (2) counts all**topological**...Page 215

Thus 'star molecules' containing a certain number of block-co-polymcrs are

formed. The statistical properties of these star molecules are derived both for the

case that

included.

Thus 'star molecules' containing a certain number of block-co-polymcrs are

formed. The statistical properties of these star molecules are derived both for the

case that

**topological**hindrance effects are disregarded and where they areincluded.

Page 218

We now turn to the inclusion of the

mentioned in the introduction, the addition of a block-co-polymer to an already

existing star molecule is hindered by the presence of the "cloud" of B type

material. Thus ...

We now turn to the inclusion of the

**topological**hindrance effects. As wasmentioned in the introduction, the addition of a block-co-polymer to an already

existing star molecule is hindered by the presence of the "cloud" of B type

material. Thus ...

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### Contents

Remarks | 2 |

The BaumgartnerMuthukumar Effect in Networks | 11 |

Statistical Mechanics of dDimensional Polymer Networks and Exact | 17 |

Copyright | |

13 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 blends calculated carrageenan chain segments Chem chemical chemical potential configuration conformation constant constraints corresponding crosslinking curves deformation density dependence deswelling deuterated deviatoric distribution dynamics effect elastic free energy elementary strand elongation entanglements entropy equation equilibrium excluded volume experimental experiments exponent Flory Flory-Huggins Flory-Huggins theory fluctuations fractal dimension free chains free energy Gaussian gelation Gennes helix increases interaction parameter isotropic labelled paths layer length linear Macromolecules macroscopic measurements melt micronetworks modulus molecular weight monomers network chains neutron scattering observed obtained PDMS chains phantom network Phys polybutadiene polyelectrolyte Polymer Networks polymeric fractals polystyrene Proceedings in Physics properties radius of gyration ratio rod network Rouse model rubber elasticity S.F. Edwards sample scaling solution solvent Springer Proceedings star molecules star polymers swelling swollen temperature theory topological uniaxial values vector viscoelastic viscosity volume fraction