Rubber elasticity on chemical relaxation

1972 ◽  
Vol 16 (9) ◽  
pp. 2249-2255 ◽  
Author(s):  
Kenkichi Murakami ◽  
Gin-ho Hisue
Keyword(s):  
Rubber Elasticity ◽  
Chemical Relaxation

Structures and Properties of Rubberlike Networks

1997 ◽  
Author(s):  
Burak Erman ◽  
James E. Mark
Keyword(s):  
Subject Matter ◽  
Rubber Elasticity ◽  
Polymer Science ◽  
Strong Emphasis ◽  
Present Book ◽  
Structures And Properties

Rubber elasticity is an important sub-field of polymer science. This book is in many ways a sequel to the authors' previous, more introductory book, Rubberlike Elasticity: A Molecular Primer (Wiley-Interscience, 1988), and will in some respects replace the now classic book by L.R.G. Treloar, The Physics of Rubber Elasticity (Oxford, 1975). The present book has much in common with its predecessor, in particular its strong emphasis on molecular concepts and theories. Similarly, only equilibrium properties are covered in any detail. Though this book treats much of the same subject matter, it is a more comprehensive, more up-to-date, and somewhat more sophisticated treatment.

Rubbery Ormosils

1990 ◽  
Vol 180 ◽  
Author(s):  
Young J. Chung ◽  
Su-Jen Ting ◽  
John D. Mackenzie
Keyword(s):  
Nmr Spectroscopy ◽  
Structural Model ◽  
Rubber Elasticity ◽  
New Technique ◽  
Polydimethyl Siloxane ◽  
Gelation Process ◽  
Organically Modified Silicates ◽  
Organically Modified ◽  
A New Technique

ABSTRACTA new technique which permits the successful preparation of ORMOSILS (Organically Modified Silicates) with rubbery elasticity has been developed. Common alkoxides were reacted with polydimethyl siloxane (PDMS) and the microstructures were carefully controlled. Large monoliths of the porous rubbery ORMOSILS have been prepared. Gelation process was studied by 29Si liquid NMR spectroscopy. A structural model for rubber elasticity of ORMOSILS was proposed.

scholarly journals Chiral phase-coexistence in compressed double-twist elastomers

Soft Matter ◽  
2021 ◽  
Author(s):  
Matthew P Leighton ◽  
Laurent Kreplak ◽  
Andrew David Rutenberg
Keyword(s):  
Liquid Crystal ◽  
Biological Systems ◽  
Phase Coexistence ◽  
Rubber Elasticity ◽  
Chiral Phase

We adapt the theory of anisotropic rubber elasticity to model cross-linked double-twist liquid crystal cylinders such as exhibited in biological systems. In mechanical extension we recover strain-straightening, but with an...

scholarly journals Chain Configurations and Rubber Elasticity

1954 ◽  
Vol 11 (6) ◽  
pp. 604-605
Author(s):  
Ei Teramoto
Keyword(s):  
Rubber Elasticity

Chemical Stress Relaxation of NR Networks Prepared in the Swollen State

1986 ◽  
Vol 59 (4) ◽  
pp. 541-550 ◽  
Author(s):  
Kyung-Do Suh ◽  
Hidetoshi Oikawa ◽  
Kenkichi Murakami
Keyword(s):  
Stress Relaxation ◽  
Network Structure ◽  
Three Dimensional ◽  
Polymer Chains ◽  
Chemical Stress ◽  
Network Chain ◽  
Crosslinking Process ◽  
Dimensional Network ◽  
Chemical Relaxation ◽  
The Difference

Abstract From the experimental results of the present investigation, it is apparent that two kinds of networks which have a different three-dimensional network structure give quite different behavior of chemical stress relaxation, even if both networks have the same network chain density. The difference in three-dimensional network structure for the two kinds of rubber arises from the degree of entanglement, which changes with the concentration of the polymer chains prior to the crosslinking process. The direct cause of chemical relaxation is due to the scission of network chains by degradation, whereas the total relaxation is caused by the change of geometrical conformation of network chains. This then casts doubt on the basic concept of chemorheology which is represented by Equation 2.

Energy Contribution to Rubber Elasticity

1968 ◽  
Vol 39 (11) ◽  
pp. 4937-4943 ◽  
Author(s):  
Mitchel Shen ◽  
Paul J. Blatz
Keyword(s):  
Rubber Elasticity ◽  
Energy Contribution

Theory of Rubber Elasticity for Development of Synthetic Rubbers

1943 ◽  
Vol 16 (2) ◽  
pp. 286-289
Author(s):  
Hubert M. James ◽  
Eugene Guth
Keyword(s):  
Long Range ◽  
Characteristic Property ◽  
Raw Materials ◽  
Rubber Elasticity

Abstract Two cardinal problems exist in connection with the production of synthetic rubbers: (1) choice of the type of synthetics, necessary raw materials, and methods of production, and (2) evaluation of the products obtained. The most important and characteristic property of synthetics (and of natural rubbers) is their long-range reversible elasticity.

Sign in / Sign up

Export Citation Format

Share Document