The influence of UV-irradiation on poly(vinyl chloride) modified by iron and cobalt chlorides

Kaczmarek, Halina; Kowalonek, Jolanta; Ołdak, Dagmara

doi:10.1016/s0141-3910(02)00286-0

Cited by 46 publications

(31 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second absorption region value is in the order of 3.85 3 10 26 s. This slight increase in the s 2 after UV irradiation confirms the known fact that this a polymer under- going competitive reactions: chain breaking and crosslinking [31].…”

Section: 10supporting

confidence: 72%

Electrical properties and the thermal and photochemical stability of poly(vinyl chloride) films stabilized with some maleyl amide polymers

Rabie

Eid

2007

Vinyl Additive Technology

View full text Add to dashboard Cite

Some maleyl amide polymers were prepared and evaluated as thermal and photochemical stabilizers for rigid poly(vinyl chloride) (PVC). Thermal degradation was determined by measuring the rate of dehydrochlorination potentiometrically. Also, the degree of discoloration was measured for both the thermally degraded and the photochemically degraded PVC. Dibutyltin maleate heat stabilizer was used for comparison in thermal and photodegradation. The applied polymers showed stabilizing efficiency in both thermal and photodegradation by decreasing the rate of degradation, degree of discoloration, and percentage weight loss. The amide polymer of melamine gave better stabilizing efficiency than those of p-phenylenediamine and m-phenylenediamine. A dielectric study was carried out over a frequency range from 100 Hz to 100 kHz at room temperature (∼228C). The results revealed that the stabilizing effect of these maleyl amide polymers depends on the type of stabilizer and its concentration. The dielectric data for the investigated systems were found to be fitted by two absorption regions using the Frö hlich function. These regions are ascribed to the Maxwell-Wagner effect and to intramolecular motion involving the rotation of various segments of the side group as the main chain motion is restricted. The study led to a conclusion that the greater stabilizing efficiency of the melamine amide polymer may be due to the presence of a free amino group (À ÀNH 2 ) that can participate in the stabilization process.

show abstract

Section: 10supporting

confidence: 72%

Electrical properties and the thermal and photochemical stability of poly(vinyl chloride) films stabilized with some maleyl amide polymers

Rabie

Eid

2007

Vinyl Additive Technology

View full text Add to dashboard Cite

show abstract

“…There is a clear phenomenon occurred in the photodegradation process, namely, the PVC-FePcCl 16 composite film sample quickly changed to yellow with the light irradiation because of the dehydrochlorination and the formation of conjugated double bonds in PVC film [25]. Moreover, silver nitrate solution measure shows that chloride ion exists in the aqueous solution of degraded film after a few hours irradiation, which furtherly confirms the fact of dehydrochlorination of PVC in the initial photodegradation process.…”

Section: Dehydrochlorinationmentioning

confidence: 58%

“…It can be seen that there is a fast development of broad band in 200-600 nm range in irradiated PVC-FePcCl 16 composite film from Fig. 4a, the strengthening of absorption not only in ultraviolet region but also in visible region, resulting from dehydrochlorination and the formation of conjugated double bonds [25]. Comparing with PVC-FePcCl 16 composite film, the extent of dehydrochlorination of pure PVC film (Fig.…”

Section: Dehydrochlorinationmentioning

confidence: 88%

Photodegradation activity of polyvinyl chloride (PVC)–perchlorinated iron (II) phthalocyanine (FePcCl16) composite film

Yang

Tian

et al. 2011

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…Therefore, various fillers have been used to improve the thermal performance of PVC in order to broaden the scope of its application. PVC can be modified by nano-CaCO3, silica, and montmorillonite, and such modification can increase mechanical properties, thermal properties, and processing fluidity of PVC (Kaczmarek et al 2003;Chen et al 2004;Xiong et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Polyvinyl Chloride / Attapulgite / Micro-crystalline Cellulose (MCC) Composites Preparation and Analysis of the Role of MCC as a Compatibilizer

Wang¹,

Zhang²,

Huang³

et al. 2015

BioResources

View full text Add to dashboard Cite

To improve the performance of polyvinyl chloride (PVC), composites incorporating polyvinyl chloride (PVC), attapulgite nanoparticles (ANPs), and microcrystalline cellulose (MCC) were successfully prepared. The composites had higher vicat softening temperatures (VSTs) and the MCC had a great influence on mechanical properties of the composites. When MCC was added from 0 to 5 per hundred parts of PVC (phr), the mechanical properties of the composites increased, but the mechanical properties of the composites decreased when the MCC was more than 5 phr. The tensile breaking stress, tensile strength, and impact strength were maximized with increases of 19.76 N (4.1%), 29.66 MPa (15.5%), and 13.8 MPa (7%) when 5 phr MCC was added. Infrared spectral analysis indicated that MCC and ANPs were present in the composites. Scanning electron microscopy showed that the composites system was distributed into two phases, which indicated that MCC in composites was dissolved in the PVC matrix, and some of MCC coated the surface of ANPs as a compatibilizer. Overall, this study provided a promising method for PVC modification to improve its performance.

show abstract

The influence of UV-irradiation on poly(vinyl chloride) modified by iron and cobalt chlorides

Cited by 46 publications

References 18 publications

Electrical properties and the thermal and photochemical stability of poly(vinyl chloride) films stabilized with some maleyl amide polymers

Electrical properties and the thermal and photochemical stability of poly(vinyl chloride) films stabilized with some maleyl amide polymers

Photodegradation activity of polyvinyl chloride (PVC)–perchlorinated iron (II) phthalocyanine (FePcCl16) composite film

Polyvinyl Chloride / Attapulgite / Micro-crystalline Cellulose (MCC) Composites Preparation and Analysis of the Role of MCC as a Compatibilizer

Contact Info

Product

Resources

About