Group transfer living polymer grafted to an initiator support

Details Group transfer living polymer grafted to an initiator support Group transfer living polymer grafted to an initiator support

1989-10-06

1991-05-28

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526190, 526194, 526312, 526328, 5263297, 526341, 526286, 5263031, 525248, 525254, 525282, 525294, 525301, 525302, 525309, C08F 2012, C08F 416, C08F 2034

Patent

active

050196340

ABSTRACT:
Group Transfer Polymerization (GTP) process for preparing a "living" polymer, the process comprising contacting under polymerizing conditions in a polymerization medium, at least one acrylic or maleimide monomer with an initiator which is a tetracoordinate organosilicon, organotin or organogermanium compound having at least one GTP initiating site and a catalyst which is or is a source of an anion selected from the group consisting of bifluoride, fluoride, cyanide, azide or a selected oxyanion, or a selected Lewis acid or Lewis base, the process further characterized in that the initiator or the anion or Lewis acid catalyst is chemically attached (grafted) to a solid support that is insoluble in the polymerization medium.

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