Prep aration and evaluation of th ermally stable nano–structured self–do ped polythiop hene coating for an alysis of tr ace levels of phthalate esters

Conducting polym er–based so lid–phase m icroextraction (SPME) coatings su ch as polypyrrole, polya niline and polythiophene (PT), are one the coating categories w hich have been succes sfully used for the extraction of v arious compounds [۱]. Among th em, PT and their derivatives [۲] have been stu died less tha n polypyrro le and polyaniline. It m ay be due to the low thermal stability of c ommon P T i.e. ۲۰۰ ºC [۳]. Nano–structured self– doped polythiophene (SP T) electrodeposited in the presenc e of fluorinated organic acid was ap plied as a thermally st able conductive polym er–based solid–phase m icroextraction (SPME) fiber candid ate.Phthalate esters ( PAEs), are used primarily as plasticizers in polymeric materials to inc rease their flexibility through weak secondary molecular i nteractions with polymer chains.PAEs as well as their metabolites and degradation products can cause adverse effects on human health, especially on liver, kidney an d testicles [۴]In this work we proposed a n ew strategy to increase the thermal stability of PT based on self– dopin g of the poly mer.

کلیدواژه ها:

self– doped polyt hiophene ، Solid–phase microextraction ، phthal ate esters ، N ano– struct ure.