Bimodal elastomeric networks chain length

Madkour, T. Mark, J. E., Elastomeric Properties of Poly(dimethylsiloxane) Networks Having Bimodal and Trimodal Distributions of Network Chain Lengths. J. Macromol. Sci., Macromol. Rep. 1994, A31,153-160. 

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. 

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

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. 

Mark, J. E. Tang, M.-Y., Dependence of the Elastomeric Properties of Bimodal Networks on the Length and Amount of the Short Chains. J. Polym. Set,... 

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