The Synthesis and Characterization of Poly Vinyl Chloride Chemically Modified with C<sub>60</sub>

Rusen, Edina; Marculescu, Bogdan; Butac, Livia Maria; Preda, N.; Mihuţ, L.

doi:10.1080/15363830802042563

Cited by 19 publications

(18 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The intensity of the C–Cl stretching (610–697 cm −1 region) and also the CH 2 deformation bands of PVC‐MIP decrease in comparison to the bands from the bare PVC. This change in the relative intensity of the bands accounts for the substitution of chlorine atoms at the surface of the beads as reported previously for modified PVC …”

Section: Resultssupporting

confidence: 76%

“…Insight into the vibrational properties of PVC‐MIP could better be gained from the inspection of Raman spectra displayed in Figure (b) for bare PVC and PVC‐MIP. The Raman spectrum of PVC displays prominent C–Cl stretching bands in the 610–697 cm −1 region and CH 2 deformation band situated between 1427 and 1436 cm −1 . The intensity of the C–Cl stretching (610–697 cm −1 region) and also the CH 2 deformation bands of PVC‐MIP decrease in comparison to the bands from the bare PVC.…”

Section: Resultsmentioning

confidence: 98%

See 1 more Smart Citation

Molecularly imprinted PVC beads for the recognition of proteins

Ayadi

Mekhalif

Salmi

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

Ultrathin films of molecularly imprinted polymer (MIP) were prepared by photoiniferter on PVC beads for the selective uptake of lysozyme, taken as a model protein. Acrylamide was selected as the functional monomer and N,N‐methylenebisacrylamide as the crosslinking agent. The copolymerization process was confined to the surface of the PVC beads grafted with diethyldithiocarbamate iniferter initiator in the presence of lysozyme. After extraction of lysozyme from the shell of the PVC‐MIP beads, the latter were then used as artificial receptors for the rebinding of lysozyme. The sequential steps of the modification of PVC beads were monitored by XPS, infrared and Raman spectroscopies. The imprinting step was found to be essential as the PVC‐MIP beads could recognize lysozyme but not the non‐imprinted beads (PVC‐NIP). The binding properties of PVC‐MIP beads were determined using UV spectroscopy from adsorption isotherms of lysozyme, cytochrome, and myoglobin. The imprinted beads were found to be highly selective toward lysozyme over the competitive proteins. This work shows the interest of photoiniferter as an efficient mean for the design of molecularly imprinted polymer beads for rapid, selective removal of proteins. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43694.

show abstract

Section: Resultssupporting

confidence: 76%

Section: Resultsmentioning

confidence: 98%

Molecularly imprinted PVC beads for the recognition of proteins

Ayadi

Mekhalif

Salmi

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The glass transition temperatures of unmodified PVC, 5% and 15% PVCazide and the covalently plasticized PVC samples were determined by using differential Scanning Calorimetry (DSC) and compared with non-covalent mixtures of 5% PVC-DEHP and 15% PVC-DEHP. To obtain the noncovalent PVC-phthalate samples, a mixture of PVC (purified by the method of Rusen [31]) with either 5 wt% DEHP or 15 wt% DEHP was mechanically stirred at 120 °C for 4 h. The extent of T g reduction in the presence of plasticizer is used as a parameter to assess the plasticizing efficiency. For each run, the calorimeter was equilibrated at 20 °C with a temperature ramp of 20 °C/min to 150 °C and then held at isothermal conditions at 150 °C for 5 minutes before ending cycle 1.…”

Section: Resultsmentioning

confidence: 99%

Phthalate plasticizers covalently linked to PVC via copper-free or copper catalyzed azide-alkyne cycloadditions

Earla

Costanzo

et al. 2017

Polymer

View full text Add to dashboard Cite

Plasticization of PVC was carried out by covalently linking phthalate derivatives via copper-free (thermal) or copper catalyzed azide-alkyne cycloadditions. Di(2-ethylhexyl) phthalate derivatives (DEHPether and DEHP-ester) were synthesized and appended to PVC at two different densities. The glass transition temperatures of the modified PVC decreased with increasing content of plasticizer. PVC-DEHP-ether gave lower glass transition temperatures than PVC-DEHP-ester, reflecting the enhanced flexibility of the ether versus ester linker.

show abstract

“…PVC (25.00 g, 400 mmol) was dissolved in THF (250 mL) . The solution was precipitated in MeOH (1 L).…”

Section: Methodsmentioning

confidence: 99%

Internal plasticization of poly(vinyl) chloride using glutamic acid as a branched linker to incorporate four plasticizers per anchor point

Tek

Wojtecki

et al. 2019

J. Polym. Sci. Part A: Polym. Chem.

View full text Add to dashboard Cite

Internal plasticization of polyvinyl chloride (PVC) using thermal azide‐alkyne Huisgen dipolar cycloaddition between azidized PVC and electron‐poor acetylenediamides incorporating a branched glutamic acid linker resulted in incorporation of four plasticizing moieties per attachment point on the polymer chain. A systematic study incorporating either alkyl or polyethylene glycol esters provided materials with varying degrees of plasticization, with depressed Tg values ranging from −1 °C to 62 °C. Three interesting trends were observed. First, Tg values of PVC bearing various internal plasticizers were shown to decrease with increasing chain length of the plasticizing ester. Second, branched internal plasticizers bearing triethylene glycol chains had lower Tg values compared to those with similar length long‐chain alkyl groups. Finally, thermogravimetric analysis of these internally plasticized PVC samples revealed that these branched internal plasticizers bearing alkyl chains are more thermally stable than similarity branched plasticizers bearing triethylene glycol units. These internal tetra‐plasticizers were synthesized and attached to PVC‐azide in three simple synthetic steps. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1821–1835

show abstract

The Synthesis and Characterization of Poly Vinyl Chloride Chemically Modified with C₆₀

Cited by 19 publications

References 18 publications

Molecularly imprinted PVC beads for the recognition of proteins

Molecularly imprinted PVC beads for the recognition of proteins

Phthalate plasticizers covalently linked to PVC via copper-free or copper catalyzed azide-alkyne cycloadditions

Internal plasticization of poly(vinyl) chloride using glutamic acid as a branched linker to incorporate four plasticizers per anchor point

Contact Info

Product

Resources

About

The Synthesis and Characterization of Poly Vinyl Chloride Chemically Modified with C60

Cited by 19 publications

References 18 publications

Molecularly imprinted PVC beads for the recognition of proteins

Molecularly imprinted PVC beads for the recognition of proteins

Phthalate plasticizers covalently linked to PVC via copper-free or copper catalyzed azide-alkyne cycloadditions

Internal plasticization of poly(vinyl) chloride using glutamic acid as a branched linker to incorporate four plasticizers per anchor point

Contact Info

Product

Resources

About

The Synthesis and Characterization of Poly Vinyl Chloride Chemically Modified with C₆₀