FLEXIBLE TO RIGID NANOPOROUS POLYURETHANE-ACRYLATE (PUAC) TYPE MATERIALS FOR STRUCTURAL AND THERMAL INSULATION APPLICATIONS

摘要

Novel urethane-acrylate (UAC) Star monomers and polyurethane-acrylate (PUAC) aerogel polymers derived therefrom are described herein, along with other novel, related monomers and polymers. Also described herein are processes for preparing the UAC Star monomers, the PUAC aerogel polymers, and the other related monomers and polymers. The PUAC and related polymers herein are useful in various applications including in structural and thermal insulation.

主权项

1. A urethane-acrylate star monomer of the formula (I): wherein the nitrogen atoms of the urethane moieties are independently attached to their respective aryl rings at the 2, 3, or 4-positions of the aryl rings; wherein each of W, X, and Y independently represents a C1-C6 straight chain alkyl group or a C1-C6 branched alkyl group; and wherein each of R1-R9 is independently a hydrogen, a C1-C6 straight chain alkyl group, or a C1-C6 branched alkyl group.