Characterization of PET films modified by tetraethylenepentamine (TTEPA)

Nissen, K. E.; Stevens, Michael G.; Stuart, Barbara H.; Baker, Anthony T.

doi:10.1002/1099-0488(20010315)39:6<623::aid-polb1036>3.0.co;2-7

Cited by 21 publications

(32 citation statements)

References 26 publications

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“…have also been reported. [21,26,27] PET in the form of films as well as fibers and capillaries were treated by these studies. Making the PET surfaces hydrophilic or hydrophobic was achieved after the treatment depending on the monomer inlet to the plasma process.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of Poly(ethylene terephthalate) Film by Pulsed Plasma Deposition of Maleic Anhydride

Yin²,

Mao³

et al. 2003

Adv Funct Materials

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Poly(ethylene terephthalate) (PET) films have been functionalized with carboxyl groups by pulsed plasma polymerization of maleic anhydride (MA). The preserved anhydride groups of MA were converted to carboxyl groups by subsequent hydrolysis. Fourier‐transform infrared spectroscopy (FTIR) and X‐ray photoelectron spectroscopy (XPS) were used to determine the chemical composition of the deposited MA plasma polymers. Atomic force microscopy (AFM) observations visually confirmed the coverage of the PET surface with plasma polymers after water treatment of the processed PET substrate, and the functionality in the XPS spectra of samples before and after water treatment indicated the persistence of functional groups and the good adhesion of the deposited layers on the PET substrate. In accordance with FTIR and XPS results, the density of carboxyl groups increased with decreasing plasma duty cycle. Compared with the pristine PET substrate, a higher roughness was observed on the modified PET surface by AFM. The roughness decreased sharply with decreasing plasma duty cycle.

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Section: Introductionmentioning

confidence: 99%

Functionalization of Poly(ethylene terephthalate) Film by Pulsed Plasma Deposition of Maleic Anhydride

Yin²,

Mao³

et al. 2003

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Dyeability as observed by K/ S values was also the highest for the layer-by-layer modification technique. Table 1 contrasts four chemical reaction schemes to modify PET surfaces without physical modification (Chen & McCarthy, 1998;Nissen, Stevens, Stuart, & Baker, 2001). PET modification by glycolysis was determined most effective as measured by percent concentration of hydroxyl groups.…”

Section: Surface Graftingmentioning

confidence: 99%

“…One final chemical reaction to be discussed for PET modification is aminolysis (Nissen et al, 2001). This reaction forms amide groups through the reaction of polyester's carbonyl with a primary amine.…”

Section: Surface Graftingmentioning

confidence: 99%

“…This reaction can be quite severe to the fibers with complete degradation as a result. To temper fiber degradation, long chain multifunctional amines such as tetraethylenepentamine (TTEPA) has been employed with favorable results (Nissen et al, 2001). While XPS showed no difference in % nitrogen content with reaction time, titration and DCA methods show an optimum wettability or amide content at 180 minutes.…”

Section: Surface Graftingmentioning

confidence: 99%

“…The influence of many chemical and physical parameters such as salt concentration, temperature and pH on the rate of enzyme catalysis can be explained by their influence on protein structure. Some enzymes require small non-protein molecules, known as cofactors, in order to function as catalysts (Palmer & Bonner, 2007 (Chen & McCarthy, 1998) and e) from (Nissen et al, 2001).…”

Section: Enzyme Surface Modification Of Textilesmentioning

confidence: 99%

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