Induction heating for surface triggering styrene polymerization

2013/5/16  Views

Tags: Induction heating, surface triggering, styrene polymerization, plastic


Induction heating for surface triggering styrene polymerizationTitanium and its alloys present high interests for technological applications due to their high resistance corrosion, mechanical properties and biocompatibility [1-5]. For example, titanium is largely used as orthopedic metallic implant [6]. In addition, TiO2 layers on Ti possess a wide variety of functional properties in self-cleaning [7,8], photocatalysis [9], gas sensing [10,11], solar energy conversion [12] and wettability [13].
In combination with those remarkable characteristics, some Ti applications require specific surface properties that can be imparted with suitable surface functionalizations of the TiO2 oxide layer. Creating a thin and adherent polymeric layer is one of the common ways to achieve such a surface modification. This kind of polymeric layers can be obtained via surface-initiated atom transfer radical polymerization (ATRP). Nowadays, a wide variety of materials have been reported as suitable substrates for sur-face-initiated ATRP: glass, metals, metal oxides, etc. [14-20]. ATRP takes place through a reversible redox reaction involving a transition metal catalyst which is oxidized as the polymer is converted from the dormant state to the radical active state. The mechanism involves the transfer of a halogen atom from an initiator to the metal catalyst yielding an active radical initiator, which can then lead to the monomer polymerization.

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