Hybrid polymer materials for liquid crystal alignment layers
申请人:Gibbons M. Wayne
公开号:US20060051524A1
公开(公告)日:2006-03-09
The present invention provides novel hybrid polymer useful for alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from at least one component selected from the group consisting of monomer, oligomer and polymer within the class of polyimides, poly(amic acids) and esters thereof and at least one component selected from the group consisting of addition monomer and functionalized addition polymer wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal optical elements such as all liquid crystal display products or modes, liquid crystal devices and liquid crystal optical films comprising the novel hybrid polymer alignment layers.
HYBRID POLYMER MATERIALS FOR LIQUID CRYSTAL ALIGNMENT LAYERS
申请人:Gibbons Wayne M.
公开号:US20100103358A1
公开(公告)日:2010-04-29
The present invention provides novel hybrid polymer useful for alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from at least one component selected from the group consisting of monomer, oligomer and polymer within the class of polyimides, poly(amic acids) and esters thereof and at least one component selected from the group consisting of addition monomer and functionalized addition polymer wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal optical elements such as all liquid crystal display products or modes, liquid crystal devices and liquid crystal optical films comprising the novel hybrid polymer alignment layers.
Rigid Fluorinated Polyimides with Well-Defined Polystyrene/Poly(pentafluorostyrene) Side Chains from Atom Transfer Radical Polymerization
作者:G. D. Fu、E. T. Kang、K. G. Neoh、C. C. Lin、D. J. Liaw
DOI:10.1021/ma0506435
日期:2005.9.1
copolymers consisting of rigid fluorinated polyimide (FPI) backbone and well-defined polystyrene (PS) sidechains (FPI-cb-PS), or poly(pentafluorostyrene) (PFS) sidechains (FPI-cb-PFS), were synthesized by atom transfer radical polymerization (ATRP) from the bromide-containing FPI macroinitiators (FPI-Br). The sizes of the FPI-Br macroinitiators (consisting of 14 repeat units in the rigid backbone) and cleaved