Raman study of polyethylene-polypropylene blends

Shemouratov, Yu. V.; Prokhorov, K. A.; Sagitova, E.A.; Nikolaeva, G. Yu.; Пашинин, П. П.; Lebedev, Yu. A.; Антипов, Е. М.

doi:10.1134/s1054660x09220010

Cited by 19 publications

(13 citation statements)

References 19 publications

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“…For this, the relative Raman band ratio method can be used to eliminate the variations due to absolute intensity fluctuations . In order to determine the relative composition of PLA in the blend, the quantitative method applied by Shemouratov et al . was used.…”

Section: Resultsmentioning

confidence: 99%

“…Based on the investigation of Nielsen et al ., Shemouratov et al . have studied the Raman spectra of blends that result from the melt mixing of polyethylene (PE) and polypropylene (PP), and they have confirmed that the contents of the blend components can be determined by means of the ratio of the integral intensities of the PE and PP fundamental vibrations …”

Section: Introductionmentioning

confidence: 93%

“…For this, the relative Raman band ratio method can be used to eliminate the variations due to absolute intensity fluctuations. [14] In order to determine the relative composition of PLA in the blend, the quantitative method applied by Shemouratov et al [22] was used. Thus, for a binary system (a blend formed by only two components, w PLA + w PMMA = 1) with two isolated analytical bands with areas A PLA 873 and A PMMA 813 , the blend composition was evaluated from the relative Raman band area ratio A PLA 873 = A PLA 873 þA PMMA 813 À Á of the C-COO stretching band of PLA at 873 cm À1 and the C-O-C symmetric stretching band of PMMA at 813 cm À1 , where theA PLA 873 (C-COO stretching) band area is directly related to the PLA concentration and the A PMMA 813 (C-O-C symmetric stretch) band area is directly related to the PMMA concentration.…”

Section: Quantitative Analysismentioning

confidence: 99%

“…[20] Based on the investigation of Nielsen et al, [21] Shemouratov et al have studied the Raman spectra of blends that result from the melt mixing of polyethylene (PE) and polypropylene (PP), and they have confirmed that the contents of the blend components can be determined by means of the ratio of the integral intensities of the PE and PP fundamental vibrations. [22] The aim of this work was the study of the potential capability of micro Raman spectroscopy to quantify PLA in PMMA matrix, based on the knowledge that the relative contents of PLA in the blend can be determined using the ratio of the area band of the PLA and PMMA fundamental vibrations. Differential scanning calorimetry (DSC) was used to characterize the polymer blends.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characterization of poly(lactic acid)/poly(methyl methacrylate) blend tablets for application in quantitative analysis by micro Raman spectroscopy

Vano-Herrera

Misiun

Vogt

2015

J Raman Spectroscopy

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Poly(lactic acid) (PLA) is a biodegradable polymer that has a variety of applications, one of which is as biomaterial in surgery or as functional layers on implants, due to its compatibility with living tissue. This paper reports the possibilities of quantification of poly(lactic acid) (PLA) in a polymer matrix such as poly(methyl methacrylate) (PMMA) by micro Raman spectroscopy (MRS). Blends of amorphous poly(DL‐lactic acid) with poly(methyl methacrylate) were prepared by the procedure of dissolution/precipitation. Thermal properties of the blends such as the glass transition temperature (Tg) were characterized by differential scanning calorimetry (DSC). The PLA/PMMA blends exhibited only a single glass transition region, indicating that this system is miscible. The PLA/PMMA system obeys the Gordon–Taylor equation (Tg versus PLA content). Various concentration ratios of PLA blends were prepared to use as a basis for quantitative analysis by MRS. Intensities of the characteristic bands at 813 cm−1 (νCOC of PMMA) and 873 cm−1 (νC―COO of PLA) were used for the calculation. The calibration graph showed a good linear correlation with an R2 value of 0.9985. On the basis of the calibration curve obtained, the determined content of several PLA/PMMA blends was in good agreement when compared with nominal contents. The limit of detection (LOD) and quantification (LOQ) were calculated by the calibration data set as signal‐to‐noise method. The relative standard deviation of this method was lower than 10% and the accuracy better than 4%. This study demonstrated that Raman spectroscopy provides an alternative non destructive method for quantitative analysis of PLA in a PMMA matrix. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Quantitative Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation and characterization of poly(lactic acid)/poly(methyl methacrylate) blend tablets for application in quantitative analysis by micro Raman spectroscopy

Vano-Herrera

Misiun

Vogt

2015

J Raman Spectroscopy

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“…The assignments of the Raman lines in the spectra of amorphous, interfacial and crystalline regions of PE are listed in Table 3 . [ 47–53 ]…”

Section: Resultsmentioning

confidence: 99%

Viscoelasticity, Tensile Properties, and Microstructure Development in Cyclic Olefin Copolymer/Polyolefin Elastomer Blends

Pei

Zhao

et al. 2022

Macro Chemistry & Physics

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The new ethylene/cyclic olefin copolymers (COCs) are a major breakthrough in traditional polyolefins made available by metallocenes, but its high brittleness restricts the applications. Ethylene/1-octene copolymer (POE) with similar backbones is blended with COCs to compensate the rigidity of cyclic segments. Field emission scanning electron microscope photos and Raman spectra demonstrate the existence of abundant phase interfaces between POE and COC, and the phase structure changes from spherical droplets, of partial continuity to cocontinuity with rising POE components. The phase changes are considered as corresponding to the formation, expansion, and coalescence of droplets at melting state according to Van Gurp curves, Han plot, and Cole-Cole plot. Viscoelastic data show that the storage modulus, loss modulus, and complex viscosity reach a high value at medium POE contents. Furthermore, the tensile strength and fracture energy increases and then decreases, the elongation at break increases and Young's modulus reduces with the increment of POE percentage. Because of the large spherical and ellipsoidal structures and abundant interfaces, the synchronous reinforcement and toughness come true at a medium ratio of POEs. Dynamic mechanical analysis confirms the existence of the interfacial layer, and the interfacial layer becomes more pronounced with the rising POE contents exactly as the morphology and rheological findings.

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Characterization of oil-producing microalgae using Raman spectroscopy

et al. 2011

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Raman spectroscopy offers a powerful alternative analytical method for the detection and identification of lipids/oil in biological samples, such as algae and fish. Recent research in the authors' groups, and experimental data only very recently published by us and a few other groups suggest that Raman spectroscopy can be exploited in instances where fast and accurate determination of the iodine value (associated with the degree of lipid unsaturation) is required. Here the current status of Raman spectroscopy applications on algae is reviewed, and particular attention is given to the efforts of identifying and selecting oil-rich algal strains for the potential mass production of commercial biofuels and for utilization in the food industry.

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Raman study of polyethylene-polypropylene blends

Cited by 19 publications

References 19 publications

Preparation and characterization of poly(lactic acid)/poly(methyl methacrylate) blend tablets for application in quantitative analysis by micro Raman spectroscopy

Preparation and characterization of poly(lactic acid)/poly(methyl methacrylate) blend tablets for application in quantitative analysis by micro Raman spectroscopy

Viscoelasticity, Tensile Properties, and Microstructure Development in Cyclic Olefin Copolymer/Polyolefin Elastomer Blends

Characterization of oil-producing microalgae using Raman spectroscopy

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