Question: Terephthaloyl chlorideis the acid chloride of terephthalic acid and is one of two monomers used to make a para-aramid synthetic fiber related to other aramids such as Nomex and what
Context: Terephthalic acid (a portmanteau of the turpentine-producing tree terebinthus, and phthalic acid) is the organic compound with formula CH(COH).  This white solid is a commodity chemical, used principally as a precursor to the polyester PET, used to make clothing and plastic bottles. Several million tonnes are produced annually. Microfiber (or microfibre) is synthetic fiber finer than one denier or decitex/thread.  This is smaller than the diameter of a strand of silk (which is approximately one denier), which is itself about 1/5 the diameter of a human hair.  The most common types of microfibers are made from polyesters, polyamides (e.g., nylon, Kevlar, Nomex, trogamide), or a conjugation of polyester, polyamide, and polypropylene.  Microfiber is used to make mats, knits, and weaves for apparel, upholstery, industrial filters, and cleaning products.  The shape, size, and combinations of synthetic fibers are selected for specific characteristics, including softness, toughness, absorption, water repellency, electrostatics, and filtering capabilities. Vinyon is a synthetic fiber made from polyvinyl chloride.  In some countries other than the United States, vinyon fibers are referred to as polyvinyl chloride fibers.  It can bind non-woven fibers and fabrics.  It was invented in 1939. Phthalic acid is an aromatic dicarboxylic acid, with formula CH(COH).  It is an isomer of isophthalic acid and terephthalic acid.  Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acid chloride of terephthalic acid and is one of two monomers used to make Kevlar(R), the other being p-phenylenediamine.  Its CAS reference number is 100-20-9 and its chemical formula is C H Cl O . Sodium polycarboxylate is the name used on consumer product labels in the United States to designate a family of anionic polymers with a long carbon chain backbone along which are many attached carboxyl functional groups.  They are used in consumer household cleaning products to enhance performance, and prevent redeposition of the material removed from the dirty article.  In the United States the major end-use is in powdered home laundry detergents.  The commonly used molecular weights range from 2,000-10,000.  They can be homopolymers, made from one type of monomer, such as 2-propanoic acid, or heteropolymers (copolymers), made from two monomers, such as acrylate and maleic acid.  These copolymers can be made in any ratio, thus the designation "sodium polycarboxylate" covers a wide range of distinct molecules. "p"-Toluic acid (4-methylbenzoic acid) is a substituted benzoic acid with the formula CHCHCOOH.  It is an intermediate in some industrial processes for the oxidation of "p"-xylene to terephthalic acid which is used in the manufacture of polyethylene terephthalate.  It is a white crystalline solid that is practically insoluble in water, but soluble in acetone. Kevlar is the registered trademark for a para-aramid synthetic fiber, related to other aramids such as Nomex and Technora.  Developed by Stephanie Kwolek at DuPont in 1965, this high-strength material was first commercially used in the early 1970s as a replacement for steel in racing tires.  Typically it is spun into ropes or fabric sheets that can be used as such or as an ingredient in composite material components. In the Gallagher–Hollander degradation (1946) pyruvic acid is removed from a linear aliphatic carboxylic acid yielding a new acid with two carbon atoms fewer.  The original publication concerns the conversion of bile acid in a series of reactions: acid chloride (2) formation with thionyl chloride, diazoketone formation (3) with diazomethane, chloromethyl ketone formation (4) with hydrochloric acid, organic reduction of chlorine to methylketone (5), ketone halogenation to 6, elimination reaction with pyridine to enone 7 and finally oxidation with chromium trioxide to "bisnorcholanic acid" 8. Methacryloyl chloride is the acid chloride of methacrylic acid.  It is used to manufacture polymers.
Answer: Technora