## 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 110

Fig .4: Transformation in Che H-NMR spectra (13 MHz) of perdeuterated PDMS

PB

Fig .4: Transformation in Che H-NMR spectra (13 MHz) of perdeuterated PDMS

**chains**Cleft) and deuterobenzene (right) respectively dissolved in a PDMS and aPB

**network**. In both cases the**network**volume fraction $ i-s about 902 and the ...Page 111

Probe chain (circles 0) and

a function of (X'- X-*). The free chain volume fraction is 9%. On the right vertical

ordinate is the calculated order parameter S for the Si-CD., bonds of the PDt'S ...

Probe chain (circles 0) and

**network chain**(triangles A) auadrupolar split- tings asa function of (X'- X-*). The free chain volume fraction is 9%. On the right vertical

ordinate is the calculated order parameter S for the Si-CD., bonds of the PDt'S ...

Page 115

Two major results have thus been experimentally demonstrated: - The induced

uniaxiality is not only macroscopic, but is also clearly reflected at a molecular

scale: indeed, the

in a ...

Two major results have thus been experimentally demonstrated: - The induced

uniaxiality is not only macroscopic, but is also clearly reflected at a molecular

scale: indeed, the

**network chain**segments acquire a uniaxial dynamics, resultingin a ...

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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