Bimodal distribution, elastomeric networks

Mark, J. E., Elastomeric Networks with Bimodal Chain-Length Distributions. Acc. Chem. Res. 1994,27, 271-278. 

Mark JE. Elastomeric networks with bimodal chain-length distributions. Acc Chem Res 1994 27 271-8. 

The most novel elastomer of known structure has a multimodal distribution of network chain lengths. In the bimodal case, it consists of a combination of unusually short network chains (molecular weights of a few hundred) and the much longer chains typically associated with elastomeric behavior (molecular weights of ten or twenty thousand). One use of elastomers having such a bimodal distribution is possibly to improve the ultimate properties of an elastomer. 

Sharaf, M. A. Mark, J. E. Al-Ghazal, A. A.-R., Elastomeric Properties of Poly(dimethylsiloxane) Networks Having High-Functionality Crosslinks and Bimodal Chain-Length Distributions. J.Appl. Polym. Sci. Symp. 1994, 55, 139-152. 

Sharaf MA, Mark JE, Al-Ghazal AA-R. Elastomeric properties of poly(dimethylsiloxane) networks having high-functionality crosslinks and bimodal chain-length distributions. J Appl Polym Sci Symp 1994 55 139-52. 

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