Surf Wiki
Save to docs
general/acyl-chlorides

From Surf Wiki (app.surf) — the open knowledge base

Terephthaloyl chloride

Terephthaloyl chloride

1,4-Benzenedicarbonyl chloride Benzene-1,4-dicarbonyl chloride Terephthalic acid dichloride Terephthaloyl dichloride p-Phthalyl chloride TCL

Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acyl chloride of terephthalic acid. It is a white solid at room temperature. It is one of two precursors used to make Kevlar, the other being p-phenylenediamine. TCL is used as a key component in performance polymers and aramid fibers, where it imparts flame resistance, chemical resistance, temperature stability, light weight, and very high strength. TCL is also an effective water scavenger, used to stabilize isocyanates and urethane prepolymers.

Preparation

Terephthalic acid dichloride is produced commercially by the reaction of 1,4-bis(trichloromethyl)benzene with terephthalic acid: : C6H4(CCl3)2 + C6H4(CO2H)2 → 2 C6H4(COCl)2 + 2 HCl

It can also be obtained by chlorination of dimethyl terephthalate.

Use

TCL is used for making various copolymers and aramid polymers such as Heracron, Twaron and Kevlar:

The reaction of 1,4-phenyl-diamine (''para''-phenylenediamine) with terephthaloyl chloride yielding Kevlar

References

References

  1. (2014). "Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book)". [[Royal Society of Chemistry.
  2. (2000). "Photochemistry".
  3. "Verfahren zur Herstellung von Terephthalsäure- und Isophthalsäuredichlorid".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

acyl-chlorides benzene-derivatives monomers
Want to explore this topic further?

Ask Mako anything about Terephthaloyl chloride — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report