摘要:
A composition having a crosslinking compound that has the following structure (I) wherein R is OH, NH2, halide, ester, amine, ether, or amide, and x is 2-6 and A is an arene moiety having a molecular weight of less than about 10,000. A mixture including the composition and a polymer, a method for forming the mixture and a crosslinked polymer are also disclosed.
摘要:
Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and X and X′ are independently selected from the group consisting of H, F, Cl, Br, I, MgCl, MgBr, Mgl, Sn(R′)3, CH═CHR″, —OR″, —COOR″, —S—COR″, —B(OR″)2, —COR″, —C≡CH, and a polymerizable cyclic pi-conjugated carbon-ring structure optionally comprising S, N or O heteroatoms; wherein R′ is a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms, and R″ is H or a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms.
摘要:
The present invention relates to an improved for the hydrogenation of an immiscible mixture of an organic reactant in water. The immiscible mixture can result from the generation of water by the hydrogenation reaction itself or, by the addition of, water to the reactant prior to contact with the catalyst. The improvement resides in effecting the hydrogenation reaction in a monolith catalytic reactor from 100 to 800 cpi, at a superficial velocity of from 0.1 to 2 m/second in the absence of a cosolvent for the immiscible mixture. In a preferred embodiment, the hydrogenation is carried out using a monolith support which has a polymer network/carbon coating onto which a transition metal is deposited.
摘要:
A polymeric composition comprising a first polymer chosen from a poly(arylene ether) polymer including polymer repeat units of the following structure: —(O—Ar1—O—Ar2—O—)m—(—O—Ar3—O—Ar4—O)n- where Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0 to 1, n is 1 m; a polysulfone, a polyimide, a poly(etherketone), a polyurea, a polyurethane, and combinations thereof and a second polymer comprising a per(phenylethynyl) arene polymer derivative. Cured films containing the polymer can exhibit at least one of the following properties: Tg from 160° C. to 180° C., a dielectric constant below 2.7 with frequency independence, and a maximum moisture absorption of less than 0.17 wt %. Accordingly, the polymer is especially useful, for example, in interlayer dielectrics and in die-attach adhesives.
摘要:
Thienothiophene monomers having an SF5 group and conducting oligomers and polymers formed by the polymerization of such monomers and their use as hole injection materials, charge transport materials, or as semiconductors. The compound may be of the formula: where X and X′ are independently H, halogen atoms (e.g., F, Cl, Br, and I), MgCl, MgBr, Mgl, Sn(R′)3, where R′ comprises C1-6 alkyl or —OC1-6 alkyl, boronic acid, boronic ester, —CH═CHR″ (where R″ comprises H or C1-6 alkyl), —OC1-6 alkyl, —COOC1-6 alkyl, —S—COR′″ and —COR′″ (where R′″ comprises H or C1-6 alkyl), —C≡CH, or polymerizable aromatic rings (such as phenyl, naphthalene, pyrrole, dithiophene, thienothiophene, thiophene and so forth).
摘要:
A polymeric composition comprising a first polymer chosen from a poly(arylene ether) polymer including polymer repeat units of the following structure: —(O—Ar1—O—Ar2—O—)m—(—O—Ar3—O—Ar4—O)n- where Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0 to 1, n is 1 m; a polysulfone, a polyimide, a poly(etherketone), a polyurea, a polyurethane, and combinations thereof and a second polymer comprising a per(phenylethynyl) arene polymer derivative. Cured films containing the polymer can exhibit at least one of the following properties: Tg from 160° C. to 180° C., a dielectric constant below 2.7 with frequency independence, and a maximum moisture absorption of less than 0.17 wt %. Accordingly, the polymer is especially useful, for example, in interlayer dielectrics and in die-attach adhesives.
摘要:
Partially and fully fluorinated alkyl substituted thienothiophene monomers (and polymers thereof) wherein the monomers are represented by the formula: wherein R is a partially or fully fluorinated primary, secondary or tertiary alkyl having from 1 to 8 carbon atoms; and X and X′ are independently selected from the group consisting of H, F, Cl, Br, I, MgCl, —COR″, —C≡CH, and a polymerizable cyclic pi-conjugated carbon-ring structure optionally comprising S, N or O heteroatoms; wherein R′ is a primary, secondary or tertiary alkyl having from 1 to 6 carbon atoms, and R″ is H or a primary, or tertiary alkyl having from 1 to 6 carbon atoms.
摘要:
Thienothiophenes compositions comprising a C3-8 secondary or tertiary alkyl group are disclosed. The thienothiophenes may be represented by the formula: where R is C3-8 secondary or tertiary alkyl, e.g., isopropyl, tert-butyl, tert-pentyl, isopentyl, and 2-ethylhexyl, X and X′ are independently selected from the group consisting of H, halogen atoms (e.g., F, Cl, Br, and I), MgCl, MgBr, Mgl, Sn(R′)3, (where R′ is C1-6 alkyl or —OC1-6 alkyl), boronic acid, boronic ester, —CH═CHR″ (where R″ is H or C1-6 alkyl), —OC1-6 alkyl, —COOC1-6 alkyl, —S—COR′″, —COR′″ (where R′″ is H or C1-6 alkyl), —C≡CH, and polymerizable aromatic rings such as phenyl, naphthalene, pyrrole, dithiophene, thienothiophene, thiophene and so forth.
摘要:
Thienothiophene monomers having an SF5 group and conducting oligomers and polymers formed by the polymerization of such monomers and their use as hole injection materials, charge transport materials, or as semiconductors. The compound may be of the formula: where X and X′ are independently H, halogen atoms (e.g., F, Cl, Br, and I), MgCl, MgBr, MgI, Sn(R′)3, where R′ is C1-6 alkyl or —OC1-6 alkyl, boronic acid, boronic ester, —CH═CHR″ (where R″ is H or C1-6 alkyl), —OC1-6 alkyl, —COOC1-6 alkyl, —S—COR′″ and —COR′″ (where R′″ is H or C1-6 alkyl), —C≡CH, or polymerizable aromatic rings (such as phenyl, naphthalene, pyrrole, dithiophene, thienothiophene, thiophene and so forth.