Elastomer-modified epoxy synthesis

W. A. Romanchick, J. E. Sohn, and J. F. Geibel Synthesis, Morphology, and Thermal Stability of Elastomer-Modified Epoxy Resin, in ACS Symposium Series 221 — Epoxy Resin Chemistry II, R. S. Bauer (ed.), American Chemical Society, Washington DC, 1982, pp. 85-118. 

Synthesis, Morphology, and Thermal Stability of Elastomer-Modified Epoxy Resins... 

Conclusion A direct result of these studies was the successful scale-up of the synthesis of solid rubber-modified epoxy resins. It was shown that the presence of elastomers destabilizes epoxy resins such that the reaction between the terminal epoxide and pendant secondary hydroxyl groups is facilitated. Since the final product contains all of these moieties (i.e., elastomer, secondary alcohols, and epoxides) it is impossible to eliminate the undesirable side reaction. However, it is possible and advantageous to design the synthesis such that the magnitude of the hydroxyl-epoxide reaction is minimized. 

Riffle JS, Yilgor I, Tran C et al (1983) Elastomeric polysiloxane modifiers for epoxy network -synthesis of fimctional oligomers and network formation studies. ACS Symp Ser 221 21-54 Risse S, Kussmaul B, BCriiger H et al (2012) Synergistic improvement of actuation properties with compatibilized high permittivity filler. Adv Funct Mater 22 3958-3962 Romasanta LJ, Leret P, Casaban L et al (2012) Towards materials with enhanced electro-meehanical response CaCu3Ti40i2-polydimethylsiloxane composites. J Mater Chem 22 24705-24712 Rosset S, Shea HR (2013) Flexible and stretchable electrodes for dielectric elastomer actuators. Appl Phys A Mater Sci Proeess 110 281-307... 

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