## 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 36

(9) The deformed structure factor is here approximated by N ♢ SoA = 5-5 0°) 1+k'

where we use for the deformed

^0 3 N«2g(X.0)/6 (11) where R^q is the undeformed

(9) The deformed structure factor is here approximated by N ♢ SoA = 5-5 0°) 1+k'

where we use for the deformed

**radius of gyration**R2(X) = {1/X + (X2-l/X)cos20}R^0 3 N«2g(X.0)/6 (11) where R^q is the undeformed

**radius of gyration**, and 9 is ...Page 49

By measuring the

function of the swelling degree Q of the gel we have obtained the results reported

"' in Fig. 1. It appears that Rg remains almost constant for all the networks

containing ...

By measuring the

**radius of gyration**of the tagged elementary strands as afunction of the swelling degree Q of the gel we have obtained the results reported

"' in Fig. 1. It appears that Rg remains almost constant for all the networks

containing ...

Page 204

The filling procedure gives the mean-square

important feature of the present investigation is that we measure the sizes of the

same molecule in the melt and in theta solution. We define the quaniity a as the

ratio ...

The filling procedure gives the mean-square

**radius of gyration**as before. Animportant feature of the present investigation is that we measure the sizes of the

same molecule in the melt and in theta solution. We define the quaniity a as the

ratio ...

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### Contents

Remarks | 2 |

Statistical Mechanics of dDimensional Polymer Networks and Exact | 17 |

FluctuationInduced Deformation Dependence of the FloryHuggins | 35 |

Copyright | |

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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