Abstract:
Disclosed is a crosslinked polysiloxane network comprising both residual Si-H linkages and a Lewis acid catalyst, wherein the network is derived from a linear hydridosiloxane, a branched hydridosiloxane, a cyclic hydridosiloxane or a mixture of a linear hydridosiloxane or branched hydridosiloxane and a cyclic hydridosiloxane. Disclosed also is a method to produce the crosslinked polysiloxane network, alternatively accompanied by a silane with aliphatic, aromatic, or cycloaliphatic substituents by reacting in the presence of an effective amount of a Lewis acid catalyst a linear hydridosiloxane, a branched hydridosiloxane, a cyclic hydridosiloxane or a mixture of a linear hydridosiloxane or branched hydridosiloxane and a cyclic hydridosiloxane.
Abstract:
The invention discloses compounds of structure I wherein M is a divalent, bivalent or tetravalent metal ion; "a" is 0, 1, 2, or a non-zero fraction having a value between 0 and 1; Y is independently at each occurrence a charge balancing counterion; R 1 and R 2 are independently at each occurrence a halogen, a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycioaliphatic radical, a C 2 -C 20 aromatic radical, or R 1 and R 2 may together form a divalent aliphatic radical, a divalent cycioaliphatic radical, or a divalent aromatic radical; R 3 is independently at each occurrence an organic radical having structure II wherein Ar 1 is a C 2 -C 50 aromatic radical; L 1 is a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycioaliphatic radical, or a C 2 -C 20 aromatic radical; F is independently at each occurrence a structural unit derived from an olefin monomer selected from the group consisting of polycyclic olefin monomers and heterocyclic olefin monomers; "n" is independently at each occurrence an integer from 1 to about 200; Q is independently at each occurrence a hydrogen, a halogen, a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycioaliphatic radical, or a C 2 -C 20 aromatic radical; and "m" is independently at each occurrence an integer from 1 to about 10.
Abstract:
In one aspect the present invention provides a storage medium for data, the storage medium comprising: a) a substrate, a physical portion of which comprises at least one polyimide, and b) at least one data layer on the substrate. The substrate comprising a polyimide exhibits low axial displacement and beneficial damping characteristics.
Abstract:
The present invention relates to process comprising reacting a polyfluorenes comprising at least one structural group of formula I with an iridium (III) compound of formula II wherein, R1 and R2 are independently alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R5 is H or CHO; R3 and R4 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R11 and R12 taken together form a substituted or unsubstituted monocyclic or bicyclic heteroaromatic ring; R13 is independently at each occurrence halo, nitro, hydroxy, amino, alkyl, aryl, arylalkyl, alkoxy, substituted alkoxy, substituted alkyl, substituted aryl, or substituted arylalkyl; Ar is aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a combination thereof; X is selected from a direct bond, alky, substituted alkyl, and combinations thereof; Y is CHO or NH2; Z is CHO or NH2 where Z does not equal Y; and p is O, 1 or 2. The invention also relates to the polyfluorenes, which are products of the reaction, and the use of the polyfluorenes in optoelectronic devices.
Abstract:
Polymers including at least one structural unit derived from a compound of Formula (I) or including at least one pendant group of Formula (II) may be used in optoelectronic devices, wherein R 1 , R 3 , R 4 and R 6 are independently hydrogen, alkyl, alkoxy, oxaalkyl, alkylaryl, aryl, arylalkyl, heteroaryl, substituted alkyl; substituted alkoxy, substituted oxaalkyl, substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted heteroaryl; R 1a is hydrogen or alkyl; R 2 is alkylene, substituted alkylene, oxaalkylene, CO, or CO 2 ; R 2a is alkylene; R 5 is independently at each occurrence hydrogen, alkyl, alkylaryl, aryl, arylalkyl, alkoxy, carboxy, substituted alkyl; substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted alkoxy, X is halo, triflate, -B(OR 1a ) 2 , or Formula (III) located at the 2, 5- or 2, 7- positions; and L is derived from phenylpyridine, tolylpyridine, benzothienylpyridine, phenylisoquinoline, dibenzoquinozaline, fluorenylpyridine, ketopyrrole, 2-(1-naphthyl)benzoxazole)), 2-phenylbenzoxazole, 2-phenylbenzothiazole, coumarin, thienylpyridine, phenylpyridine, benzothienylpyridine, 3-methoxy-2-phenylpyridine, thienylpyridine, phenylimine, vinylpyridine, pyridylnaphthalene, pyridylpyrrole, pyridylimidazole, phenylindole, derivatives thereof or combinations thereof.
Abstract:
Described herein is an organic opto-electronic device comprising a cathode comprising at least one zero-valent metal; an anode; an opto-electronically active organic material; wherein said cathode is in contact with at least one organic ammonium salt. In certain embodiments, the organic ammonium salt has structure (I), wherein R 1 -R 4 are independently at each occurrence a C 1 -C 20 aliphatic radical, a C 3 -C 20 cycloaliphatic radical, or a C 3 -C 2O aromatic radical and wherein X - is selected from the group consisting of monovalent inorganic anions, monovalent organic anions, polyvalent inorganic anions, polyvalent organic anions, and mixtures thereof.
Abstract:
Described herein is an organic opto-electronic device comprising a cathode comprising at least one zero-valent metal; an anode; an opto-electronically active organic material; wherein said cathode is in contact with at least one organic ammonium salt. In certain embodiments, the organic ammonium salt has structure (I), wherein R 1 -R 4 are independently at each occurrence a C 1 -C 20 aliphatic radical, a C 3- C 20 cycloaliphatic radical, or a C 3 -C 2O aromatic radical is disclosed and wherein X - is selected from the group consisting of monovalent inorganic anions, monovalent organic anions, polyvalent inorganic anions, polyvalent organic anions, and mixtures thereof.
Abstract:
Crosslinkable polymeric materials are disclosed useful for the temporal stabilization of a poling- induced noncentrosymmetric host lattice containing guest nonlinear optical chromophores . The materials are also suitable as, crosslinkable coatings in the absence of chromophores. Also disclosed is a method of srosslinking such polymeric material comprising reacting i)a crosslinkable polymeric material comprising olefin groups and ii) a crosslinking agent comprising electron deficient olefin groups, at a temperature at which crosslinking occurs.
Abstract:
A new silicone condensation reaction, the condensation between an alkoxy silane or siloxane or a dihydric phenol and an organo-hydrosilane or siloxane and catalysts therefore is described and claimed.
Abstract:
Described herein is a transparent electrode comprising at least one optically transparent electrically conductive layer; and at least one optically transparent intermediate layer, wherein said optically transparent conductive layer is in contact with said optically intermediate layer, and wherein said optically transparent conductive layer and said optically transparent intermediate layer together transmit at least 50 percent of incident light having a wavelength in a range between about 200 and about 1200 nanometers, said optically transparent conductive layer having a bulk conductivity at least 100 Siemens per centimeter (S/cm), said optically transparent intermediate layer being comprised of a material having a bulk electrical conductivity at room temperature less than 10 -12 Siemens per centimeter and a band gap of 3.5 eV. Described herein are also methods for forming a transparent electrode, and transparent electronic devices comprising at least one transparent electrode.