4- -1.2-benzenedicarboxylic acid anhydride

Chemical Designations - Synonyms 1,2-Benzenedicarboxylic acid anhydride 1,3-Dioxophthalan PAN Phthalandione Phthalic acid anhydride Chemical Formula CjHjCCOj O. 

Synonyms AI3-04869 AIDS-189608 AIDS-189615 AIDS-189616 AIDS-189618 AIDS-169619 AIDS-169620 AIDS-169621 Araldite HT 901 1,2-Benzenedicarboxylic acid anhydride 2-Benzofuran-l,3-dione BRN 0118515 CCRIS 519 1,3-Dioxophthalan EINECS 201-607-5 ESEN 1,3-Dihydro-1,3-dioxoisobenzofuran HT 901 Isobenzofuran-l,3-dione 1,3-Iso-benzofurandione NCI-C03601 NSC 10431 PAN Phthalandione 1,3-Phthalandione Phthalic acid anhydride Phthalanhydride RCRA waste number U190 Retarder AK Retarder ESEN Retarder PD Retarder PX Sconoc 7 TGL 6525 UN 2214 Vulcalent B Vulcalent B/C Wiltrol P. 

U190. . 1,2-Benzenedicarboxylic acid anhydride U073. . . (1,1 -Biphenyl)-4,4 -diamine,3,3 -di-... 

SYNONYMS 1,2-benzenedicarboxylic acid anhydride, isobenzofurandione, 1,3-phthalandione, phthalic acid anhydride. 

Phenylethynyl)-l,2-benzenedicarboxylic acid anhydride, 476, All 4-(l-Phenylethynyl)l,8-naphthalic anhydride, 487 4-(Phenylethynyl)phenol, 183 Phenylhydroquinone, 212 A -Phenylmaleimide, 150... 

Phenylethynyl)-1,2-benzenedicarboxylic acid anhydride (PEPA) is used to introduce functional groups Pis, in order to make them heat curable. Citraconic anhydride (CA) acts in the same way. In addition, these modifiers act as end capping agents. 

Another MOF constructed from Cu paddlewheel SBUs and with 5-nitro-1,3-benzenedicarboxylate as the ligand can be used for the acetylation of methyl 4-hydroxybenzoate with acetic acid anhydride. The framework did not remain intact upon exposure to acetic acid, one of the reaction products [53]. 

In the preparation of the polyester, you will react ethylene glycol, a diol, with phthalic anhydride. In this activity, phthalic anhydride will react similarly to the way phthalic acid (1,2-benzenedicarboxylic acid) reacts, resulting in the formation of a polyester. Phthalic acid and ethylene glycol are the A and B units of the A-B polymer phthalic anhydride + ethylene glycol —> polyester. 

Thermosetting space-network polymers can be prepared through the reaction of polybasic acid anhydrides with polyhydric alcohols. A linear polymer is obtained with a bifunctional anhydride and a bifunctional alcohol, but if either reactant has three or more reactive sites, then formation of a three-dimensional polymer is possible. For example, 2 moles of 1,2,3-propane-triol (glycerol) can react with 3 moles of 1,2-benzenedicarboxylic anhydride (phthalic anhydride) to give a highly cross-linked resin, which usually is called a glyptal ... 

Amoco R1] Amoco R2] Amoco R3] Amoco R5] Amoco R7] Amoco R9. See Polystyrene Amoco TA. See Terephthalic acid Amoco TMA. See Trimellitic anhydride Amoco tBiA. See 5-t-Butyl-1,3-benzenedicarboxylic acid Amoco Butene-1. See 1-Butene Amoco Decene-1. See Decene-1 Amoco Dodecene-1. See Dodecene-1 Amoco Hexadecene-1. See Hexadecene-1 Amoco Hexene-1. See 1 -Hexene Amoco Octene-1. See Octene-1 Amoco Rackers. See Mineral oil Amoco Roiybutene. See Polybutene Amoco Roiypropene 9011] Amoco Roiypropene 9012] Amoco Roiypropene 9013. See Polypropylene... 

Dihydro-7-nortall oil-1H-imidazole-1-ethanol. See Tall oil hydroxyethyl imidazoline Dihydro-3-(octadecenyl)-2,5-furandione. See Octadecenyl succinic anhydride Dihydro-3-(octenyl)-2,5-furandione. See Octenylsuccinic anhydride Dihydrooxirene. See Ethylene oxide 5-[[1 -[[(2,3-dihydro-2-oxo-1 H-benzimidazol-5-yl)-amino]-carbonyl]-2-oxopropyl]-azo]-1,3-benzenedicarboxylic acid, dimetyl ester. See Pigment yellow 120... 

The hexagonal ring structure of benzene provided an explanation of the occurrence of three disubstituted benzenes, but there remained the considerable problem of assigning a structure to each of the three isomers. In 1867 Carl Graebe (1841-1927) argued that, of the benzenedicarboxylic acids, the one which readily formed an anhydride (phthalic acid) must have the two carboxyl groups on adjacent carbon atoms. 

An example of thermoplastic fluorinated polyimide adhesives is provided in Fig. 36. The first step is the reaction of 4,4 -[2,2,2-trifluoro(l-trifluoromethyl) ethylidene]bis(l,2-benzenedicarboxylic acid) dianhydride with either 4,4 -[[2,2,2-trifluoro-l-(trifluoromethyl)ethylidene]bis(4,l-phenyleneoxy)]bisbenzeneamine or 4,4 -[(l-methylethylidene]bis(4,l-phenyleneoxy)]bisbenzeneamine yielding the corresponding polyamic acids. Chemical dehydrocyclisation with trifiuoro-acetic anhydride and triethylamine provides the poly(ether-isoimides) 52 and 54 with 0.40 and 0.45 dl g , respectively, whereas acetic anhydride and pyridine gave polyimides 53 and 55 with tiji 0.75 and 0.71 dl g respectively [89]. 

Amino-4-hydroxy-1,2-benzenedicarboxylic acid Me ether, anhydride, in A-70151... 

Phthalic Add Kha-lik a-sod no-Benzenedicarboxylic acid. CsH604 mol wt, 166.13, crystals mp, about 230° C when heated, forming phthalic anhydride and water. 

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