Benzophenone tetracarboxylic

Bottle waste, hydrolysis of, 564 Bottles PET, 21 recycled, 532 Branched polymers, 8 Branching, 13 Branching agents, 8 Branching sequence distributions, 446 Brill temperature, 142 Brominated epoxy reagents, 414 Bromination-lithiation, 354 BTDA. See 3,3, 4,4 -Benzophenone-tetracarboxylic dianhydride (BTDA)... 

Polyimides derived from 3,3, 4,4 -benzophenone tetracarboxylic acid dianhydride (BTDA), I, and 3,3 -diaminobenzophenone (m,m -DABP), IIA, 4,4 -diaminobenzophenone (p,p -DABP), IIB, or 4,4 -oxydianiline, IIC, (and to which have been added numerous metal compounds) have been prepared. The synthetic procedure em-... 

High adhesive polyimide films were prepared by Kaneshiro et al. (2) consisting of 2,2-bisaminophenoxylphenylpropane and paraphenylene diamine, pyro-mellitic dianhydride, and 3,3, 4,4 -benzophenone tetracarboxylic dianhydride. 

Pis commonly have been synthesized from reactions of pyromellitic dianhydride [26265-89-4] (PMDA) or 3,3 4,4 -benzophenone tetracarboxylic dianhydride [2421-28-5] (BTDA) with a number of diamines like 2,2-bis(4-aminophenyl)propane, 2,2-bis(4-amino-3-methylphenyl)propane, l,l-bis(4-aminophenyl)-l-phenylethane, and l,l-bis(4-amino-3-methylphenyl)-l-phenylethane (5). The PMDA-based Pis were thermally more stable than the corresponding Pis obtained from BTDA. 

Poly(phenylquinoxaline—amide—imides) are thermally stable up to 430°C and are soluble in polar organic solvents (17). Transparent films of these materials exhibit electrical insulating properties. Quinoxaline—imide copolymer films prepared by polycondensation of 6,6,-methylene bis(2-methyl-3,l-benzoxazine-4-one) and 3,3, 4,4 -benzophenone tetracarboxylic dianhydride and 4,4,-oxydianiline exhibit good chemical etching properties (18). The polymers are soluble, but stable only up to 200—300°C. 

P, pyromellitic dianhydride B, 3,3, 4,4 -benzophenone tetracarboxylic dianhydride 3,5-DAB, 3,5-diaminoben benzophenone 4-MPD, 4-methoxy-m-phenylene diamine 4,4 -DDE, 4,4 -diaminodiphenyl ether 4,4 -DDM, -h The figure in parenthesis is the number of water molecules estimated to be associated with iho corresponding polar gr... 

Starting materials and solvents were purchased from Aldrich Chemical Co. acetonitrile (ACN), N,N-dimethylformamide (DMF), and N-methyl-2-pyrrolidone (NMP) were obtained anhydrous in Sure/Seal bottles and used as received. The polyamic acid of PMDA-ODA (2545 Pyralin) was supplied by DuPont. The soluble polyimide XU-218, derived from 3,3, 4,4 -benzophenone tetracarboxylic dianhydride (BTDA) and diamino-1,1,3-trimethyl-3-phenylindan isomers (DAPI) was purchased from Ciba-Geigy Corp. The acetylene terminated imide oligomer powder (Thermid MC-600) derived from BTDA, aminophenylacetylene, and 1,3-bis (2-aminophenoxy) benzene (APB) was obtained from National Starch and Chemical Company. Kapton Type II (PMDA-ODA) films were obtained from DuPont Co., Apical polyimide films were obtained from Allied Corp., and Upilex Type-S and Type-R polyimide films derived from 3,3, 4,4 -biphenyl tetracarboxylic dianhydride (BPDA) plus p-phenylenediamine (PDA) and ODA, respectively were obtained from ICI Americas Inc. 

The feasibility of utilising similar intramolecular hydrogen abstraction reactions for photoinitiation was therefore tested (55). Reactions of 3,3, 4,4 -benzophenone tetracarboxylic dianhydride (BTDA) with primary n-alkyl amines readily yield a series of N-substitut i imides. 

An example of the jH eparation method at room temperature is as follows (106). A mixture of 161 parts by weight (1.00 equivalent) of 3,3, 4,4 -benzophenone tetracarboxylic dianhydride and 132 parts by weight (1.00 equivalent weight) of polymeric isocyanate was prepared by mechanical blending. 

Table 13.4.3. Compounds identified in the pyrogram of poly(3,3 ,4,4 -benzophenone-tetracarboxylic dianhydride-alt-thionin), as shown in Figure 13.4.1.

The model polyimide chosen for this study was the polymer derived from 3,3 ,4,4-benzophenone tetracarboxylic dianhydride and 2,3,5,6-tetramethyl-l,4-phenylene... 

BTDA 3 3 4 4 Benzophenone tetracarboxylic dianhydride The purification steps are described in the following section. 

The incorporation of pyridine or triazole improves the adhesion between poly(imide)s and copper.Poly(3,3, 4,4 -benzophenone tetracarboxylic dianhydride-3,5-diamino-l,2,4-triazole) (BTDA-DATA) contains the triazole moiety as repeating units. Poly(4,4 -oxydiphthalic anhydride-1,3-aminophenoxybenzene-8-azaadenine) (ODPA-APB-8-AA) bears the triazole moieties at the end." BTDA-DATA starts to decompose at 350°C. However, ODPA-APB-8-AA starts to decompose at 400°C. The polymers have been tested as adhesives for copper surfaces. The adhesion is increased by the formation of copper complexes. 

PI types that are built from 2,4,6-trimethyl-1,3-phenylenediamine and 3,3, 4,4 -benzophenone tetracarboxylic dianhydride are photochemically crosslinkable due to the benzophenone incorporated. It is essential that pendent alkyl groups are attached to the aromatic structure. " However, it has been objected that photochemical crosslinking is not a practical method for fabricating gas separation membranes cost-effectively. ... 

Benzoate 2-naphthoate ethylene, 357 Benzoic acid, 393, 396, 398 Benzonitrile, 263, 286, 318 Benzophenone, 223, 312 3,3, 4,4 -Benzophenone dianhydride, 477, 481 3,3, 4,4 -Benzophenone tetracarboxylic dianhydride, 494 1 -B enzothiazol-3 -phenyl-pyrazoline, 32 Benzotriazole, 317... 

Benzophenone, 2-hydroxy-4-(octyloxy)-. See Benzophenone-12 2-Benzophenone, methyl-. See 2-Methylbenzophenone p-Benzophenone, methyl-. 5ee4-Methylbenzophenone Benzophenone, 4-phenyl-. See p-Phenylbenzophenone Benzophenone tetracarboxylate dianhydride 3,3,4,4 -Benzophenonetet-racarboxylate dianhydride. See 3,3, 4,4-Benzophenone tetracarboxylic dianhydride... 

Carbonylbis 1,3-isobenzofurandione 4,4 -Carbonylbis (phthalic anhydride). See 3,3, 4,4-Benzophenone tetracarboxylic dianhydride Carbonyl diamide Carbonyidiamine. See Urea 1,3-Carbonyi dioxypropane. See Propylene carbonate 4,4 -Carbonyidiphtnaiic acid anhydride 4,4 -Carbonyldiphthalk anhydride. See 3,3, 4,4-Benzophenone tetracarboxylic dianhydride Carborundeum Carborundum. See Silicon carbide Carbothialdine. See3,5-Dimethyl tetrahydro-2-H,1,3,5-thiadiazone-2-thione Carboxyaniline 2-Carboxyaniline o-Carboxyaniline. SeeAnthranilic acid Carboxybenzene. See Benzoic acid Carboxyethane. See Propionic acid... 

Benzophenone-3,3 -4,4 -tetracarboxylic dianhydride. See 3,3, 4,4 -Benzophenone tetracarboxylic di an hydride Benzophenone, 2,3,4-trihydroxy-. See 2,3,4-T ri hydroxybenzophenone Benzophenone, 2,4,6-trimethyl-. See 2,4,6-Tri methyl benzophenone Benzo a phenoxazin-7-ium, 9-(dimethylamino)-, chloride Benzo a phenoxazin-9-ylidene-dimethyl-ammonium, chloride. See Basic blue 6... 

Carbonyldiphthalic acid anhydride 4,4 -Carbonyldiphthalic anhydride. See 3,3, 4,4 -Benzophenone tetracarboxylic dianhydride Carbonylhydrotris (triphenylphosphine) rhodium. SeeTristriphenylphosphine rhodium carbonyl hydride Carbonyl iron. See Iron Carbonyl sulfide CAS 463-58-1 UN 2204... 

Benzophenone tetracarboxylic dianhydride Montan wax 1,2-Polybutadiene Polytetrafluoroethylene Pyromellitic dianhydride... 

Methylenebis (3-chloro-2,6-diethylaniline) 4,4 -Methylenebis 2,6-diethylaniline curing agent, epoxies Adipic acid dihydrazide 1-[(2-Aminoethyl) aminol-2-propanol Aminoethylpiperazine Aniline 3,3, 4,4 -Benzophenone tetracarboxylic dianhydride Benzyl alcohol N-Benzyidimethylamine Bis (p-aminocyclohexyl) methane Bis-hexamethylenetriamine Boron trifluoride 1-(2-Cyanoethyl)-2-ethyl-4-methylimidazole 1,2-Diaminocyclohexane 3,4-Diaminotoluene Diazabicycloundecene Didecyl methylamine... 

Benzophenone tetracarboxylic dianhydride Pyromellitic dianhydride inks, UV-reactive Epoxy acrylate... 

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