The Nature of Plastics and Their Societal Usage

Millet, Hervé; Vangheluwe, Patricia; Block, C. Elaine; Sevenster, Arjen; Garcia, Leonor; Antonopoulos, Romanos

doi:10.1039/9781788013314-00001

Cited by 46 publications

(38 citation statements)

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“…Fourier-transform infrared (FTIR) spectra (400-4000 cm -1 ) were recorded on a Shimadzu 8400 spectrophotometer (Kyoto, Japan). 1 H (500 MHz), 13 C (125 MHz), and 119 Sn (149 MHz) nuclear magnetic resonance (NMR) spectra were recorded on a Bruker DRX-500 NMR spectrometer (Zürich, Switzerland) in deuterated dimethyl sulfoxide (DMSO-d 6 ). The PVC viscosity was measured using an Ostwald U-Tube Viscometer (Ambala, India).…”

Section: Instruments and Chemicalsmentioning

confidence: 99%

“…Such a comparison provides an assessment of PVC photodegradation and production of small residues containing C=O and C=C groups [44]. The functional group index (I s ) was calculated by dividing the absorbance (A s ) of a group by that for the C-H peak (A r ) using Equation (1).…”

Section: Assessment Of Pvc By Ftir Spectroscopymentioning

confidence: 99%

“…Plastic is a polymeric material that is widely used as an alternative for wood, glass, and metals in various applications [1,2]. Plastics are cheap to produce and have superior performance and unique properties compared with other materials [3].…”

Section: Introductionmentioning

confidence: 99%

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Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers

et al. 2021

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Poly(vinyl chloride) (PVC) suffers from photo-xidation and photodegradation when exposed to harsh conditions. Application of PVC thus relies on the development of ever more efficient photostabilizers. The current research reports the synthesis of new complexes of tin and their assessment as poly(vinyl chloride) photostabilizers. The three new complexes were obtained in high yields from reaction of 4-(benzylideneamino)benzenesulfonamide and tin chlorides. Their structures were elucidated using different tools. The complexes were mixed with poly(vinyl chloride) at a very low concentration and thin films were made from the blends. The effectiveness of the tin complexes as photostabilizers has been established using a variety of methods. The new tin complexes led to a decrease in weight loss, formation of small residues, molecular weight depression, and surface alteration of poly(vinyl chloride) after irradiation. The additives act by absorption of ultraviolet light, removal the active chlorine produced through a dehydrochlorination process, decomposition of peroxides, and coordination with the polymeric chains. The triphenyltin complex showed the greatest stabilizing effect against PVC photodegradation as a result of its high aromaticity.

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Section: Instruments and Chemicalsmentioning

confidence: 99%

Section: Assessment Of Pvc By Ftir Spectroscopymentioning

confidence: 99%

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Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers

et al. 2021

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“…Plastics are cheap, durable, lightweight, and can be used in a myriad of applications. They are effective replacements for glass, wood, and steel [ 1 , 2 , 3 ]. Plastics are mainly produced from fossil feedstocks relying on technology that was developed a long time ago.…”

Section: Introductionmentioning

confidence: 99%

FTIR, Weight, and Surface Morphology of Poly(vinyl chloride) Doped with Tin Complexes Containing Aromatic and Heterocyclic Moieties

et al. 2021

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Poly(vinyl chloride) (PVC) is an important synthetic plastic that is produced in large quantities (millions of tons) annually. Additives to PVC are necessary to allow its use in many applications, particularly in harsh conditions. In regard to this, investigation of the synthesis of trimethoprim–tin complexes and their use as PVC additives is reported. Trimethoprim–tin complexes were obtained from the reaction of trimethoprim and tin chlorides using simple procedures. Trimethoprim–tin complexes (0.5% by weight) were added to PVC to produce homogenous mixtures and thin films were made. The effect of ultraviolet irradiation on the surface and properties of the PVC films was investigated. The level of both photodecomposition and photo-oxidation of PVC films containing trimethoprim–tin complexes was observed to be lower than for the blank film. The effectiveness of tin complexes as PVC photostabilizers reflects the aromaticity of the additives. The complex containing three phenyl groups attached to the tin cation showed the most stabilizing effect on PVC. The complex containing two phenyl groups was next, with the one containing butyl substituents resulting in the least stabilization of PVC. A number of mechanisms have been proposed to explain the role of the synthesized complexes in PVC photostabilization.

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“…Plastic pollution is particularly a problem in marine environments, where it has a tendency to accumulate and persist [4][5][6]. The application of plastics in everyday life has undeniable advantages and societal benefits [7][8][9], however, their concerns need to be urgently addressed to make plastic usage sustainable. Therefore, as well as a shift towards biobased materials, there is a necessity to consider the end-of-life treatment of these materials and ensure there are efficient routes of disposal available.…”

Section: Introductionmentioning

confidence: 99%

The Chemical Recycling of PLA: A Review

McKeown

Jones

2020

Sustainable Chemistry

150

118

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Plastics are an indispensable material with numerous benefits and advantages compared to traditional materials, such as glass and paper. However, their widespread use has caused significant environmental pollution and most plastics are currently nonrenewable. Biobased polymers represent an important step for tackling these issues, however, the end-of-life disposal of such materials needs to be critically considered to allow for a transition to a circular economy for plastics. Poly(lactic acid) (PLA) is an important example of a biobased polymer, which is also biodegradable. However, industrial composting of PLA affords water and carbon dioxide only and in the natural environment, PLA has a slow biodegradation rate. Therefore, recycling processes are important for PLA, particularly chemical recycling, which affords monomers and useful platform chemicals, maintaining the usefulness and value of the material. This review covers the different methods of PLA chemical recycling, highlighting recent trends and advances in the area.

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The Nature of Plastics and Their Societal Usage

Cited by 46 publications

References 0 publications

Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers

Tin Complexes of 4-(Benzylideneamino)benzenesulfonamide: Synthesis, Structure Elucidation and Their Efficiency as PVC Photostabilizers

FTIR, Weight, and Surface Morphology of Poly(vinyl chloride) Doped with Tin Complexes Containing Aromatic and Heterocyclic Moieties

The Chemical Recycling of PLA: A Review

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