Materials and methods for immobilization of catalysts on surfaces and for selective electroless metallization
申请人:Carmichael Breen Tricia
公开号:US20060263580A1
公开(公告)日:2006-11-23
A method of immobilizing a catalyst on a substrate surface involves providing novel ligating copolymers comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to catalysts such as metal ions, metal complexes, nanoparticles, or colloids; applying the ligating copolymer to a substrate surface to cause the ligating copolymer to bind thereto, and contacting the modified substrate surface with a solution of a catalyst, causing the catalyst to be ligated by the ligating copolymer and thus immobilized on the substrate surface. The ligating copolymer may be patterned on the substrate surface using a method such as microcontact printing. A method of selectively metallizing a substrate in a desired pattern involves using a ligating chemical agent comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to electroless plating catalysts; applying the ligating chemical agent to a substrate in a desired pattern using microcontact printing to cause the ligating chemical agent to bind thereto; contacting the modified substrate surface with a solution of an electroless plating catalyst, causing the catalyst to be ligated by the ligating chemical agent and thus bound to the surface; and metallizing the catalyzed regions of the substrate surface using electroless plating.
一种在基板表面固定催化剂的方法涉及提供新型配位共聚物,其中包括能够与基板表面结合的功能基团和能够与催化剂如金属离子、金属络合物、纳米颗粒或胶体配位的功能基团;将配位共聚物应用于基板表面以使其结合在一起,并将经过修饰的基板表面与催化剂的溶液接触,使催化剂被配位共聚物配位并固定在基板表面上。配位共聚物可以使用微触印等方法在基板表面上进行图案化。一种选择性地在所需图案中冶金基板的方法涉及使用包括能够与基板表面结合的功能基团和能够与电镀催化剂配位的功能基团的配位化学试剂;使用微触印将配位化学试剂应用于所需图案的基板上,使其结合在一起;将修饰后的基板表面与电镀催化剂的溶液接触,使催化剂被配位化学试剂配位并附着在表面上;并使用电镀方法在基板表面的催化区域进行冶金。