Synthesis and properties of hyperbranched polyamide–esters derived from 1,3,5-tris(4′-hydroxyphenylcarbamoyl)benzene
摘要:
A novel aromatic triol was synthesized and polycondensed with various diacid chlondes resulting in the preparation of a series of hydroxy-terminated hyperbranched polyamide-esters without gelation Structure and degree of branching of the ensuing polymers were confirmed by FTIR. H-1 and C-13 NMR analyses These thermally stable polymers were found to be Soluble in apiotic solvents Inherent vis and T-g values lie in the range of 0 15-0 21 dL/g and 74-112 degrees C, respectively (C) 2009 Elsevier Ltd All rights ieserved
Synthesis and properties of hyperbranched polyamide–esters derived from 1,3,5-tris(4′-hydroxyphenylcarbamoyl)benzene
摘要:
A novel aromatic triol was synthesized and polycondensed with various diacid chlondes resulting in the preparation of a series of hydroxy-terminated hyperbranched polyamide-esters without gelation Structure and degree of branching of the ensuing polymers were confirmed by FTIR. H-1 and C-13 NMR analyses These thermally stable polymers were found to be Soluble in apiotic solvents Inherent vis and T-g values lie in the range of 0 15-0 21 dL/g and 74-112 degrees C, respectively (C) 2009 Elsevier Ltd All rights ieserved
METHOD OF PREPARING RETARDATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY
申请人:Konica Minolta, Inc.
公开号:US20150114257A1
公开(公告)日:2015-04-30
A method of preparing a retardation film includes cellulose acetate having an average degree of acetylation of 2.0 to 2.5 and having a moisture content of 1.0 mass % or less, where the retardation film includes a compound having a Van der Waals volume of 450 to 1000 Å3. The retardation film is prepared by a dope preparing step of dissolving cellulose acetate having an average degree of acetylation within the range of 2.0 to 2.5 to prepare a dope; a film product forming step of casting the dope onto a metal belt to form a film product; a film product peeling step of peeling off the film product from the metal belt; a drawing step of drawing the peeled film product; and a drying step at a drying temperature of 140° C. or more.
Synthesis and properties of hyperbranched polyamide–esters derived from 1,3,5-tris(4′-hydroxyphenylcarbamoyl)benzene
A novel aromatic triol was synthesized and polycondensed with various diacid chlondes resulting in the preparation of a series of hydroxy-terminated hyperbranched polyamide-esters without gelation Structure and degree of branching of the ensuing polymers were confirmed by FTIR. H-1 and C-13 NMR analyses These thermally stable polymers were found to be Soluble in apiotic solvents Inherent vis and T-g values lie in the range of 0 15-0 21 dL/g and 74-112 degrees C, respectively (C) 2009 Elsevier Ltd All rights ieserved