Engineering thermoplastic polymers

PET, PTT, and PBT have similar molecular structure and general properties and find similar applications as engineering thermoplastic polymers in fibers, films, and solid-state molding resins. PEN is significantly superior in terms of thermal and mechanical resistance and barrier properties. The thermal properties of aromatic-aliphatic polyesters are summarized in Table 2.6 and are discussed above (Section 2.2.1.1). 

J. Pickett, M. Gardner, D. Gibson, and S. Rice, Global weathering of aromatic engineering thermoplastics, Polym. Degrad. Stab., 90(3) 405-417, December 2005. 

PIT Incorporation of other adipic acids, such as sebacic acid, trimethylene isophthalate, p-cetoxybenzoic acid, and ethylene glycol units Seo et al. (2006), Chen et al. (2007), Wei et al. (2006), Ou (2002) Blended with polyesters to develop high-performance materials, including crystalline engineering thermoplastic polymers, amorphous engineering thermoplastic polymers, and thermoplastic elastomers Nadkami and Rath (2002), Run et al. (2007), Krutphan and Supaphol (2005), Jafari et al. (2005), Yavari et al. (2005)... 

In 1998, PTT was finally introduced to the market by Shell Chemicals under the trade name Corterra, since an economical process for the production of PDO had been developed. PTT fibers are commercially produced today by DuPont and Shell. PTT has special characteristics as a fiber. It is particularly interesting in carpet fibers, where it has shown outstanding resiliency and chemical resistance. Also, this polymer shows potential in the field of engineering thermoplastic polymers and fabrics. 

Suprel, Engineered thermoplastic polymer, CONDEA Vista Co. 

The general-purpose thermoplastic polymers consist of such materials as polyethylene, polypropylene, polyurethanes, and polyvinyl chlorides. The engineering thermoplastic polymers include the polyimides, polyamideim-ide, polysulfones, polyetheretherketones, and polyphenylene sulfides. 

Suprel . Engineered thermoplastic polymers for injection molding. Vista Performance Pol3miers Suprel MCWPP 91-20 9/91. 

Suriano JA, Siclovan TM, Pickett JE, Brunelle DJ, O Neil GA, Zhou H. Weatherable polyary-late-co-polycarbonate engineering thermoplastic. Polym Prepr 2003 44(l) 748-9. 

Pickett, J.E., Gibson, D.A., Gardner, M.M. Effects of irradiation conditions on the weathering of engineering thermoplastics. Polym. Degrad. Stab. 93, 1597-1606 (2008) Andrady, A.L. Wavelength sensitivity in polymta photodegradation. Adv. Polym. Sci. 128, 47-94 (1997)... 

Nafion-based hybrid membranes are traditionally used electrolytes for both PEM fuel cell and DMFCs. " Besides Nafion, many composite engineering thermoplastic polymers based on poly(etheretherketone) (PEEK), polyvinyl alcohol (PVA), polysulfone, " polybenzimidazole (PBI), polyimide, and other organic-inorganic composite membranes have been employed as alternative membranes for both PEM fuel cells and DMFCs due to their lower cost, comparable conductivity, high mechanical and thermal stabilities, and easy modification as well. 

---