A Simple Approach to Synthesize and Bond Organosiloxane Films on Injection-Molded Polyolefins

摘要: A simple method was devised to fabricate and anchor organosiloxane coatings along low-surface-energy plastics without resorting chemical pre-treatment of the polymer surface. Polypropylene tubes were purposely distended by exposure toluene-based solutions. An established solvent many organic polymers compounds, toluene not only perfused into plastic via gradual intercalation accessible chains, but it also facilitated entry less compatible reagents as co-perfusates. The reagents, typically aminoalkyl si lanes, activated either concomitant perfitsion polypro-pylene or during a subsequent hydrolysis step. Freed silanol groups, interacting beneath Surface plastic, reacted form network held together siloxane bonds. type formed presented herein interpreted an amorphous aminopropylsiloxane-silanol hydrate film, with overall thickness partially submerged caught in matrix plastic. This concept intertwine growing compliant precluded conventional methods normally used improve bonding on hydrophobic plastics. comparison ninhydrin color yields suggested that films more effectively conveniently synthesized when aminopropyltri-methoxysilane applied water-saturated toluene. It follows integrating low-temperature hydrothermal processing this strategy, inorganic-organic hybrids inorganic oxide may be oil pre-molded feature traits such covalent-like fastness gas impermeability.