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77 results about "Norbornadiene" patented technology

Norbornadiene is a bicyclic hydrocarbon and an organic compound. Norbornadiene is of interest as a metal-binding ligand, whose complexes are useful for homogeneous catalysis. It has been intensively studied owing to its high reactivity and distinctive structural property of being a diene that cannot isomerize (isomers would be anti-Bredt olefins). Norbornadiene is also a useful dienophile in Diels-Alder reactions.

Heat-insulation and heat-preservation asphalt tile and preparation method thereof

The invention discloses a heat-insulation and heat-preservation asphalt tile which comprises a blank body layer, an asphalt layer, a mineral particle layer and a waterproof isolation layer. The asphalt layer comprises the following components in parts by weight: 60-80 parts of modified asphalt, 1-3 parts of a reinforced fiber group, 0.2-1 part of an ultraviolet absorbent group, 0.5-1 part of an anti-aging agent, and 1-10 parts of an energy storage and heat preservation group, wherein the ultraviolet absorbent group is composed of a light stabilizer and an quenching agent, the light stabilizeradopts at least one of ferrocene, hexamethylphosphoric triamide, and 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-benzotriazole chloride, and the quenching agent adopts a metal complex; the energy storage and heat preservation group includes norbornadiene and a heterogeneous auxiliary agent. The asphalt layer is modified, and the heat-insulation and heat-preservation asphalt tile has good strength; withcombined action of the ultraviolet absorbent group and the anti-aging agent, the heat-insulation and heat-preservation asphalt tile has excellent anti-aging performance; at the same time, under the action of the heterogeneous auxiliary agent, norbornadiene can be recycled for the heat absorption and heat release process, so as to achieve the effects of both heat insulation and heat supply and heatpreservation on a room.
Owner:浙江荣平建材科技有限公司

Monomer for identifying halogen anions, polymer and preparation method of monomer and polymer

The invention discloses a monomer N-(p-acetenyl)-phenyl-2-X-tetrafluorobenzamide (X=F, Cl, Br and I) for identifying halogen anions, a polymer, and a method for preparing the monomer and the polymer. The method comprises the following steps: by taking 4-ethynylaniline and hexafluorobenzoic acid as main initial raw materials, taking N,N-dimethyl-4-aminopyridine as a catalyst, finally synthesizing a target small molecule compound N-(p-acetenyl)-phenyl-2-X-tetrafluorobenzamide; and by taking a precious metal complex Rh+(2,5-nbd)[(eta6-C6H5)B-(C6H5)3] (triphenyl-eta6-phenylboron-2,5-norborneol diene rhodium, Rh(nbd)BPh4) as a catalyst, thereby obtaining the poly-N-(p-acetenyl)-phenyl-2-X-tetrafluorobenzamide by virtue of a coordination polymer orientation method. The obtained small molecule monomer and polymer molecular structures simultaneously contain hydrogen bond donors and halogen bond donors, and the monomer and polymer can identify the halogen anions by virtue of coordination of hydrogen bonds and halogen bonds. Meanwhile, the preparation method has the advantages of the reaction conditions are mild, the reaction process is simple, the method is easy to control, the yield of the obtained product is high and the like.
Owner:TIANSHUI NORMAL UNIV
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