Block copolymers in laminate manufacturing
AssigneeInternational Business Machines Corporation
InventorsDylan J. Boday, Joseph Kuczynski, Timothy C. Mauldin
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Abstract
A block copolymer is synthesized by polymerizing a silane-functionalized norbornene monomer in the presence of a catalyst system that includes a Ziegler-Natta catalyst and cocatalyst, followed by sequential addition and polymerization of a matrix-reactive functionalized norbornene monomer. In some embodiments, an enhanced substrate for a PCB is produced by applying the block copolymer to a substrate that includes glass fiber, followed by applying the base polymer to the substrate having the block copolymer applied thereto.
Claims17
A method for producing an enhanced substrate for a printed circuit board (PCB) comprising:
- applying a block copolymer to a substrate comprising glass fiber, wherein the block copolymer comprises a structure represented by the following formula:
- wherein R1 is a silane pendant group that includes a silicon-containing moiety capable of bonding to the glass fiber, and wherein R2 is a matrix-reactive pendant group that includes at least one of a vinyl-, allyl-, amine-, amide- and epoxy-containing moiety capable of reacting with a base polymer;
- applying the base polymer to the substrate having the block copolymer applied thereto.
A method for synthesizing a block copolymer, comprising:
- polymerizing a silane-functionalized norbornene monomer in the presence of a catalyst system comprising a Ziegler-Natta catalyst and cocatalyst using Ziegler-Natta polymerization to produce a polynorbornene homopolymer, wherein the silane-functionalized norbornene monomer is represented by the following formula:
- wherein R1 is a silane pendant group that includes a silicon-containing moiety;
- polymerizing a matrix-reactive functionalized norbornene monomer in the presence of the polynorbornene homopolymer and a multi-component catalyst system comprising a Ziegler-Natta catalyst and cocatalyst using sequential addition and Ziegler-Natta polymerization, wherein the matrix-reactive functionalized norbornene monomer is represented by the following formula:
- wherein R2 is a matrix-reactive pendant group that includes at least one of a vinyl-, allyl-, amine-, amide- and epoxy-containing moiety.
Dependencies are inferred from the claim text.