摘要:
A method for making a polymer containing a first repeat unit having formula: nullArnullN(R)nullArnull(N(Rnull)nullAr)xnull which may be substituted or unsubstituted where x is 0 or 1; each Ar is the same or different and independently is a substituted or unsubstituted aryl or heteroaryl group and R and Rnull each is hydrogen or a substituent group and a second repeat unit that is the same or different from the first repeat unit and comprises a substituted or unsubstituted, aryl or heteroaryl group. The polymer is made by Suzuki polymerisation wherein the monomer from which repeat unit (1) is derived comprises one or two reactive boron groups.
摘要:
Polymeric compositions are provided comprising a first plurality of first monomeric units comprising an aromatic group with at least one substituent selected from alkyl, heteroalkyl, alkenyl, heteroalkenyl, alkynyl, heteroalkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, and amino, and a second plurality of second multi-functional monomeric units, wherein each multi-functional monomeric unit is capable of forming a branching point in the polymeric composition, thereby resulting in a branched material. Invention compositions therefore have an altered morphology relative to similar non-branched materials. When used to form an EL layer within an EL device, this altered morphology results in EL layers with improved efficiency, which in turn results in more efficient EL devices.
摘要:
A chemical compound which has an electron donor group, an electron acceptor group, and a conjugated bridging element bridging between the electron donor group and the electron acceptor group. The chemical compound has a readily displaceable electron, is capable of emitting photoluminescent radiation. A dipole character is present therein only in the excited state of the compound. The compounds are suitable for use in optical devices and, particularly, can be used for photoluminescence quenching devices.
摘要:
A process for the production of coatings with scratch-resistant durable surfaces that comprise as photoinitiator (B) in a photocurable formulation at least one surface-active photoinitiator, concentrated at the surface of the formulation, of formula (Ia) or (Ib), wherein Ra is a radical of formula (IIa), Rb is a radical of formula (IIb)), or Ra and Rb are naphthyl, anthracyl, phenanthryl or a heterocyclic radical each of which is unsubstituted or substituted; R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are, for example, each independently of the others hydrogen; AnullY; C1-C12alkyl, halogen or phenyl; R11 and R12 are, for example, C1 -C12 alkyl; X is nullOR20 or nullN(R21)(R22); R20 is, for example, hydrogen or C1-C4alkyl; R21 and R22 are, for example, hydrogen or C1-C12 alkyl; X1 is, for example, nullOnull; Y is, for example, a single bond or nullOnull; Y1 is, for example, a single bond; and A is, for example, C6-C30alkyl.
摘要翻译:一种用于生产具有抗划伤耐久表面的涂层的方法,其在光固化制剂中包含作为光引发剂(B)的至少一种表面活性光引发剂,其在制剂的表面浓缩,式(Ia)或(Ib), 其中Ra是式(IIa)的基团,Rb是式(IIb)的基团),或Ra和Rb是萘基,蒽基,菲基或杂环基,其各自是未取代或取代的; R 1,R 2,R 3,R 4,R 5,R 6,R 7,R 8,R 9和R 10各自独立地为氢; A-Y; C 1 -C 12烷基,卤素或苯基; R 11和R 12是例如C 1 -C 12烷基; X是-OR 20或-N(R 21)(R 22); R 20为例如氢或C 1 -C 4烷基; R 21和R 22是例如氢或C 1 -C 12烷基; X1是例如-O-; Y是例如单键或-O-; Y1例如为单键; A是例如C 6 -C 30烷基。
摘要:
The present invention relates to a hot-melt adhesive composition comprising: 20 to 80% of a blend comprising: 50 to 100% of (A), which denotes a polyamide-block graft copolymer consisting of a polyolefin backbone and at least one polyamide graft, 0 to 50% of at least one polymer (B) chosen from polyolefins and polyamides; 80 to 20% of a blend comprising at least one tackifying resin and optionally at least one product chosen from waxes, plasticizers and mineral fillers; in which: the said graft is attached to the backbone via the residues of an unsaturated monomer (X) chosen from unsaturated carboxylic acids, anhydrides of unsaturated carboxylic acids and unsaturated epoxides; the residues of the unsaturated monomer (X) are attached to the backbone by grafting or copolymerization from its double bond; the molar mass {overscore (M)}n of the grafts is between 1000 and 5000; the melting point of the grafts is between 100 and 190null C.; and the MFI of (A) is between 1 and 500 (g/10 min at 190null C. under a load of 2.16 kg). This composition has many advantages: it is processed at the usual temperatures for hot-melt adhesives, that is to say around 180null C.; it is not necessary, after application, to wait for crosslinking; it is simpler to use than two-component adhesives such as epoxy adhesives in which a hardener is necessary; and it has a markedly improved shear adhesive failure temperature (SAFT) compared with crosslinkable hot-melt adhesives.
摘要:
A fluorene-based polymer of the following Formula (I) and electroluminescent devices using the same. 1 wherein, R1, R2, R3 and R4 are same or different and represent hydrogen, aliphatic or alicyclic alkyl or alkoxy groups containing 1 to 22 carbon atoms, aryl or aryloxy group containing 6 to 18 carbon atoms, cyano, cyanoethyl, or an alkyl or aryl derivatives of silicon, tin or germanium; X represents diacetylene, diethynyl aryl, divinylaryl group or a single bond; and n is an integer equal to or grater than 1.
摘要:
A process for the manufacture of polytrimethylene ether glycol comprising the steps of: (a) providing (1) 1,3-propanediol reactant selected from the group consisting of 1,3-propanediol and/or oligomers or prepolymers of 1,3-propanediol having a degree of polymerization of 2-9 and mixtures thereof, and (2) a polycondensation catalyst; and (b) polycondensing the 1,3-propanediol reactant to form a polytrimethylene ether glycol at less than one atmosphere pressure, and the product of the process. In addition, polytrimethylene ether glycol has a number average molecular weight greater than 1,500, an APHA color of less than 120, an unsaturation of less than 20 meq/kg, and a content of cyclic ether oligomers of less than 2%.
摘要:
This invention provides a new electroluminescent conjugated polymers grafted with highly efficient phosphorescent organometallic complexes (such as iridium, platinum, osmium, rubidium, etc.) and charge transport moieties (such as oxadiazole, thiadiazole, triazole, pyridine, pyrimidine, substituted or non-substituted tertiary arylamines, substituted or non-substituted quarternary arylammonium salts, substituted or non-substituted tertiary heterocyclic aromatic amines, substituted or non-substituted quarternary heterocyclic aromatic ammonium, etc.). The emissive polymers (fully conjugated or limited conjugating length) covering the full visible range can be prepared. The polymeric light emitting diodes with these materials can be used as indicators, light source and display for cellular phones, digital camera, pager, portable computer, personal data acquisition (PDA), watch, hand-held videogame, billboard, etc.
摘要:
Mono-, oligo- or polymers comprising at least one 9-H,H-fluorene group and at least one arylene group are suitable for use as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors, electroluminescent, photovoltaic and sensor devices.
摘要:
An acrylonitrile block copolymer and method for producing the same. A macroinitiator is produced by halogenating the terminal group of the polyester. The macroinitiator then contacts with acrylonitrile (AN) monomer or its derivative in the presence of the metal catalyst and solvent mixture to produce a block copolymer composed of a polyacrylonitrile, and a polyester.