## 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 71

It is possible to extract a radius of gyration Rg of the chain; it is between the value

for

for the corresponding direction of q. Waiting a longer time, one sees the signal ...

It is possible to extract a radius of gyration Rg of the chain; it is between the value

for

**isotropic**conformation and the one for affinely deformation at the scale of Rgfor the corresponding direction of q. Waiting a longer time, one sees the signal ...

Page 74

(1) The scattering in perpendicular direction is very close to the

intrachain, one: the chain does not appear deformed in that direction . It seems to

be just as dispersed as in the melt at rest. (2) The way the signal departs from the

...

(1) The scattering in perpendicular direction is very close to the

**isotropic**,intrachain, one: the chain does not appear deformed in that direction . It seems to

be just as dispersed as in the melt at rest. (2) The way the signal departs from the

...

Page 76

At a given z, <>d is constant along x and y, the chains are

dispersed. The scattering along x or y is then the single chain

, with maybe a front factor <<»d(1 -4>d)>. when integrated over z, slightly different

to ...

At a given z, <>d is constant along x and y, the chains are

**isotropic**and welldispersed. The scattering along x or y is then the single chain

**isotropic**form factor, with maybe a front factor <<»d(1 -4>d)>. when integrated over z, slightly different

to ...

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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

### Common terms and phrases

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 Editors effect elastic free energy elementary strand elongation entanglements entropy equation equilibrium excluded volume experimental experiments exponent factor Flory Flory-Huggins fluctuations fractal dimension free chains free energy Gaussian gelation Gennes increases interaction parameter isotropic labelled paths length linear Macromolecules macroscopic measurements melt modulus Molecular Basis molecular weight monomers network chains neutron scattering observed obtained P.G. de Gennes PDMS chains phantom network Phys Picot polyelectrolyte Polymer Networks polymeric fractals polystyrene Proceedings in Physics properties radius of gyration ratio reptation rod network Rouse model rubber elasticity sample scaling solution solvent Springer Proceedings star molecules star polymers structure surface swelling swollen temperature theory topological uniaxial values vector viscoelastic viscosity volume fraction