Polyurethane-poly(methyl methacrylate) interpenetrating polymer networks. I. Synthesis, characterization, and preliminary blood compatibility studies

Abstract

Simultaneous polyurethane–poly(methyl methacrylate) (PU–PMMA) interpenetrating polymer networks (IPNs) were synthesized with the PMMA polymerization initiated at room temperature. Transparent IPNs with better miscibility and synergism of mechanical properties were obtained. Dynamic mechanical analysis data indicated that up to 30% PMMA can be incorporated into PU networks without substantial phase separation. The PU–PMMA 90/10 IPNs elicit less than 2% hemolysis, suggesting that these materials could be used as blood contacting materials. © 1996 John Wiley & Sons, Inc.

Monodispersed composite particles prepared via emulsifier‐free emulsion polymerization using waterborne polyurethane as microreactors

“…According to the literature, PMMA was compatible with polyurethane. Therefore, the copolymerization of MMA could be facilely performed in the presence of WBPU/PS seed latex . The ζ‐potential change of the reaction system as a function of polymerization time is summarized in Table .…”

Synthesis of Fluorinated Polyurethane/Polyacrylate Hybrid Emulsion Initiated by60Co γ-Ray and Properties of the Latex Film

“…It was proved that the vinyl group and epoxy group were attached to WPU to increase the grafting reaction probability between WPU and polyacrylate, which could improve the performance of WPUA composite material (10,11). In addition, the grafting reaction between polyurethane and polymethyl methacrylate (PMMA) had been investigated systematically by several groups (12)(13)(14).…”

Efeito da massa molar e do teor de poliuretano nas propriedades mecânicas de misturas poli(metacrilato de metila)/poliuretano

“…Entretanto, na literatura é relatada a incompatibilidade da maioria dos pares em que o PMMA é um dos componentes da mistura, entre eles os poliuretanos [1] . Em sua maioria, os sistemas PMMA/TPU conhecidos na literatura estão sob a forma de redes interpenetrantes (IPN's -interpenetrating polymer networks), onde ocorre um aumento da miscibilidade dos componentes da rede e a melhoria de propriedades (resistên-cia ao impacto, resistência à abrasão e maior resistência aos solventes) em relação às apresentadas pelos componentes individuais [11][12][13][14][15][16] . No entanto, como nessas redes as cadeias estão entrelaçadas, não é possível analisar as propriedades de cada componente puro em relação ao conjunto.…”