Abstract: The present disclosure provides an ionic fluid pre-cursor being a reaction product of at least one compound of formula (I) and at least one hydrogen donor and having a softening point less than the melting point or softening point of said compound of formula (I) MxAy.zH2O The present disclosure also provides a process for preparing the ionic fluid pre-cursor. The present disclosure further provides an ionic fluid and a process for preparing the same.

Abstract: A silylated polycarbonate comprises silylated carbonate units, where the silylated carbonate units can be derived from a silylated dihydroxy aromatic compound of the formula (1a): wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2. A method of forming the silylated dihydroxy aromatic compound, and for forming the silylated polycarbonate, are disclosed. Also disclosed is a thermoplastic composition comprising the silylated polycarbonate, and an article comprising the thermoplastic composition.

Abstract: An aromatic polycarbonate having a high refractive index and good processing and mechanical properties is provided. The aromatic polycarbonate comprises a thiodiphenol monomer and a biphenyl monomer. The refractive index of the polycarbonate may be greater than 1.670.

Abstract: An aromatic polycarbonate having a high refractive index and good processing and mechanical properties is provided. The aromatic polycarbonate comprises a thiodiphenol monomer and a biphenyl monomer. The refractive index of the polycarbonate may be greater than 1.670.

Abstract: A silylated polycarbonate comprises silylated carbonate units, where the silylated carbonate units can be derived from a silylated dihydroxy aromatic compound of the formula (1a): wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2. A method of forming the silylated dihydroxy aromatic compound, and for forming the silylated polycarbonate, are disclosed. Also disclosed is a thermoplastic composition comprising the silylated polycarbonate, and an article comprising the thermoplastic composition.

Abstract: A method for producing a transparent article is provided. The method comprises melt transesterifying in the presence of a transesterification catalyst and a monomer mixture to produce a biphenol polycarbonate copolymer product comprising greater than 45 mole percent of structural units derived from the biphenol by heating the monomer mixture to a temperature of greater than 340° C. to make the biphenol polycarbonate copolymer; and cooling the biphenol polycarbonate copolymer to produce the transparent article. The monomer mixture comprises the biphenol, at least one aromatic dihydroxy compound other than the biphenol, and an activated carbonic acid diester.

Abstract: A method for producing a transparent article is provided. The method comprises melt transesterifying in the presence of a transesterification catalyst and a monomer mixture to produce a biphenol polycarbonate copolymer product comprising greater than 45 mole percent of structural units derived from the biphenol by heating the monomer mixture to a temperature of greater than 340° C. to make the biphenol polycarbonate copolymer; and cooling the biphenol polycarbonate copolymer to produce the transparent article. The monomer mixture comprises the biphenol, at least one aromatic dihydroxy compound other than the biphenol, and an activated carbonic acid diester.