Global InformationPolytrimethylene terephthalate information
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| Other names
Poly(trimethylene terephthalate); Poly(oxy-1,3-propanediyloxycarbonyl-1,4-phenylenecarbonyl)
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CAS Number
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CompTox Dashboard (EPA)
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| Properties | |
Chemical formula
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(C11H10O4)n |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Polytrimethylene terephthalate (PTT), is a polyester synthesized and patented in 1941.[1][2] It is produced by a method called condensation polymerization or transesterification. The two monomer units used in producing this polymer are: 1,3-propanediol and terephthalic acid or dimethyl terephthalate. Similar to polyethylene terephthalate, the PTT is used to make carpet fibers.
PTT's value as a commercial polymer has improved due to more economical and efficient methods to produce 1,3-propanediol in the 1980s by Degussa, via acrolein, and Shell via the hydroformylation of ethylene oxide.[3] DuPont has successfully commercialized the production of this polymer via 1,3-propanediol obtained by fermentation. These developments may allow PTT to effectively compete against PBT and PET, two polyesters that have been far more successful than PTT to date.
- ^ John Rex Whinfield and James Tennant Dickson (1941) "Improvements Relating to the Manufacture of Highly Polymeric Substances", UK Patent 578,079; "Polymeric Linear Terephthalic Esters", U.S. patent 2,465,319 Publication date: March 22, 1949; Filing date: September 24, 1945; Priority date: July 29, 1941
- ^ Max M. Houck; et al. (July 2001). "Poly(Trimethylene Terephthalate): A "New" Type of Polyester Fiber". Forensic Science Communications. 3 (3). Archived from the original on November 11, 2005.
- ^ Helmut Sattler; Michael Schweizer. "Fibers, 5. Polyester Fibers". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.o10_o01. ISBN 978-3527306732.