Abstract:
A polyphenylene ether oligomer and a polyphenylene ether oligomer are provided. The polyphenylene ether oligomer has a structure represented by Formula (I): wherein each R1 can be independently hydrogen, C1-6 alkyl group, or phenyl group; each R2 can be independently hydrogen, C1-6 alkyl group, or phenyl group; a:(a+b) is from 0.05:1 to 1:1; n:(a+b) is from 0.05:1 to 5:1; Q can be m can be 0 or an integer from 1 to 4; Ra can be C1-6 alkylene group; Rb can be C1-6 alkylene group; each X is independently hydrogen, acryloyl group, allyl group, vinylbenzyl group, epoxypropyl group, methacryloyl group, propargyl group, or cyanol group; and wherein the polyphenylene ether oligomer can have a number average molecular weight from 400 to 2,000.
Abstract:
The material for forming a film for lithography according to the present invention contains a compound represented by the following formula (1): wherein, each R0 independently represents a monovalent group having an oxygen atom, a monovalent group having a sulfur atom, a monovalent group having a nitrogen atom, a hydrocarbon group or a halogen atom, and each p is independently an integer of 0 to 4.
Abstract:
The norbornene derivative of the present invention is represented by the following formula (Im). According to the present invention, a novel norbornene derivative that is useful as a precursor monomer for preparing a cycloolefin polymer exhibiting excellent transparency, heat resistance and low-water absorption properties and having been freely controlled in the birefringence properties and the wavelength dispersion properties can be provided. According to the present invention, further, a norbornene ring-opened (co)polymer having excellent transparency and heat resistance, exhibiting high solubility in organic solvents and having specific birefringence properties and wavelength dependence, and a process for preparing the ring-opened (co)polymer can be provided.
Abstract:
The norbornene derivative of the present invention is represented by the following formula (Im). According to the present invention, a novel norbornene derivative that is useful as a precursor monomer for preparing a cycloolefin polymer exhibiting excellent transparency, heat resistance and low-water absorption properties and having been freely controlled in the birefringence properties and the wavelength dispersion properties can be provided. According to the present invention, further, a norbornene ring-opened (co)polymer having excellent transparency and heat resistance, exhibiting high solubility in organic solvents and having specific birefringence properties and wavelength dependence, and a process for preparing the ring-opened (co)polymer can be provided.
Abstract:
Poly(paraphenylenevinylene) derivatives and their use as electroluminescence materials Use of polymers containing structural units of the formula (I) nullnullA1null(A2)CnullCHnullA3nullCHnullC(A2)nullnullnullnull(I) in which A1, A2 and A3 are identical or different mono- and/or polynuclear aryl and/or heteroaryl groups which are optionally linked via one or more bridges, preferably one bridge, and/or fused and can optionally be substituted, and in which in each case two bonds originate from A1 and A2 and in each case one bond originates from A2, as electroluminescence material. The polymers of the formula (I) according to the invention are distinguished above all by a high stability, coupled with a high fluorescence quantum yield.
Abstract:
The invention relates to nitrogen-containing polymers containing structural units of formula (I), ##STR1## where the symbols and indices have the following meanings: Ar.sup.1, Ar.sup.2, Ar.sup.3 are, identically or differently, mono- and/or polynuclear and/or condensed aryl and/or heteroaryl groups which may or may not be linked via one or more bridges carbon atoms, which may or may not be substituted;X is a single bond, --O--, --S--, --SO--, --SO.sub.2, NR.sup.3, --CR.sup.4 R.sup.5 --, --CO--, --CR.sup.6 .dbd.CR.sup.7, CR.sup.8 R.sup.9 --CR.sup.10 R.sup.11 or SiR.sup.12 R.sup.13 ;R.sup.1 -R.sup.13 are, identically or differently, H, a hydrocarbon radical having from 1 to 22 carbon atoms or Ar.sup.4, where Ar.sup.4, identical with or different from Ar.sup.1, has the same meanings as Ar.sup.1 ;n=1, 2 or 3.
Abstract translation:PCT No.PCT / EP95 / 03836 371日期1997年3月28日 102(e)1997年3月28日PCT PCT 1995年9月28日PCT公布。 公开号WO96 / 10598 日期:1996年04月11日本发明涉及含有式(I),(IMA)(I)结构单元的含氮聚合物,其中符号和指数具有以下含义:Ar 1,Ar 2,Ar 3可以相同或不同,单 - 和/或多核和/或稠合的芳基和/或杂芳基,其可以或可以不经由一个或多个桥碳原子连接,所述桥碳原子可以被取代; X是单键,-O - , - S - , - SO - , - SO 2,NR 3,-CR 4 R 5 - , - CO-,-CR 6 = CR 7,CR 8 R 9 -CR 10 R 11或SiR 12 R 13; R 1 -R 13可以相同或不同地为H,具有1至22个碳原子的烃基或Ar 4,其中与Ar 1相同或不同的Ar 4具有与Ar 1相同的含义; n = 1,2或3。
Abstract:
Diarylacetylenes and diarylenamines are synthesized from a Schiff's base and an N-arylmethylheterocycle; these compounds are useful as intermediates for a variety of polymers; in particular an efficient process is provided for producing diaryl acetylenes useful in the efficient production of acetylene group-containing polymers which can be cross-linked to produce high strength polymers free of structural defects such as conventionally arise as a result of liberation of volatiles during the cross-linking.
Abstract:
Compounds of the formula ##STR1## in which Ar is substituted or unsubstituted phenyl, naphthyl, or thienyl; and Ar.sup.1 is 3-phenoxyphenyl, 4-fluoro-3-phenoxyphenyl, 2-methyl[1-1'-biphenyl]-3-yl, or 6-phenoxy-2-pyridyl, exhibit pyrethroid-like insecticidal and acaricidal activity and are relatively nontoxic to fish.
Abstract:
A compound of the formula:CXY.dbd.CH--CR.sup.1 R.sup.2 --CH.sub.2 OCH.sub.2 Rwherein X and Y are each selected from hydrogen and halogen, R.sup.1 and R.sup.2 are each lower alkyl of up to four carbon atoms, or together with the adjacent carbon atom form a cycloalkyl group of up to six carbon atoms, and R represents a phenoxy- or benzyl-substituted phenyl and pyridyl group which may optionally be substituted with fluorine. The compounds are useful for combating insect pests.
Abstract:
Compounds of the formula ##STR1## in which Ar is substituted or unsubstituted phenyl, naphthyl, or thienyl; Z is oxygen, sulfur, or methylene; and Ar' is 2-methyl[1,1'-biphenyl]-3-yl, 3-phenoxyphenyl, 4-fluoro-3-phenoxyphenyl, or 6-phenoxy-2-pyridyl exhibit pyrethroid-like insecticidal and acaricidal activity and are relatively harmless to aquatic fauna.