Semiinterpenetrating polymer networks

Arkles BC, Smith RA (1990) Secondary crosslinked siloxane semiinterpenetrating polymer networks and methods of making them. US Patent 4 970 263... 

Recently, a new kind of plastic crystal composite electrolytes with the polymer matrix as a mechanically reinforcing framework was designed to prepare flexible LJBs with high mechanical strength. For example, a UV-curable semiinterpenetrating polymer network matrix was used to form the plastic crystal composite electrolyte, which indicated a remarkable improvement in flexibility (Ha et al., 2012). 

Brovko A A, Fainleib A M, Shantalii T A, Sergeeva L M and Davidenko V V (1994) Structure and viscoelastic properties of polycyanurate-polyurethane semiinterpenetrating polymer networks, Polym Sci 36 934-938. 

Rosu, D., Rosu, L., Mustata, F., Varganici, C.-D. Effect of UV radiation on some semiinterpenetrating polymer networks based on polyurethane and epoxy resin. Polym. Degrad. Stab. 97, 1261-1269 (2012)... 

As a hybrid material with other polymers, a semiinterpenetrating network polymer (semi-IPN) made of chitin and poly(ethylene glycol) by photopolymerization of a poly(ethylene glycol) macromonomer [29]. A gel with water content at 60-81% and high strength as a crosshnked hydrogel (2.4 MPa) has been obtained. 

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