A comparative study on the efficiencies of polyethylene compatibilizers by using theoretical methods

Yıldırım, Erol; Yurtsever, Mine

doi:10.1007/s10965-011-9771-7

Cited by 17 publications

(11 citation statements)

References 44 publications

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“…4 . It has been ascertained that the positive χ and E mix value obtained at ambient temperature allied to the phase separation as conferred in SAXS spectra of polymer nanocomposite previously while reduction in the value with the amelioration in temperature relinquish some extent of intercalation or mixing 45 46 .…”

Section: Resultsmentioning

confidence: 85%

Temperature Assisted in-Situ Small Angle X-ray Scattering Analysis of Ph-POSS/PC Polymer Nanocomposite

Yadav

Naebe

Wang

et al. 2016

Sci Rep

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Inorganic/organic nanofillers have been extensively exploited to impart thermal stability to polymer nanocomposite via various strategies that can endure structural changes when exposed a wide range of thermal environment during their application. In this abstraction, we have utilized temperature assisted in-situ small angle X-ray scattering (SAXS) to examine the structural orientation distribution of inorganic/organic nanofiller octa phenyl substituted polyhedral oligomeric silsesquioxane (Ph-POSS) in Polycarbonate (PC) matrix from ambient temperature to 180 °C. A constant interval of 30 °C with the heating rate of 3 °C/min was utilized to guise the temperature below and above the glass transition temperature of PC followed by thermal gravimetric, HRTEM, FESEM and hydrophobic analysis at ambient temperature. The HRTEM images of Ph-POSS nano unit demonstrated hyperrectangular structure, while FESEM image of the developed nano composite rendered separated phase containing flocculated and overlapped stacking of POSS units in the PC matrix. The phase separation in polymer nanocomposite was further substantiated by thermodynamic interaction parameter (χ) and mixing energy (Emix) gleaned via Accelrys Materials studio. The SAXS spectra has demonstrated duplex peak at higher scattering vector region, postulated as a primary and secondary segregated POSS domain and followed by abundance of secondary peak with temperature augmentation.

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Section: Resultsmentioning

confidence: 85%

Temperature Assisted in-Situ Small Angle X-ray Scattering Analysis of Ph-POSS/PC Polymer Nanocomposite

Yadav

Naebe

Wang

et al. 2016

Sci Rep

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“…The most promising functional groups that are reactive towards PET are: Glycidyl Methacrylate (GMA) and Maleic Anhydryde (MA) (Sun et al, 1996;Yildirim and Yurtsever, 2012). The final selection of the functionalized compatibilizers will contain these groups.…”

Section: Introductionmentioning

confidence: 99%

Influence of Processing Parameters and Composition on the Effective Compatibilization of Polypropylene–Poly(ethylene terephthalate) Blends

Bruggen

Koster

Picken

et al. 2016

International Polymer Processing

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The effects of the addition of different functionalized compatibilizers on toughness, morphology and rheological properties of a polypropylene (PP) -poly(ethylene terephthalate) (PET) (85-15 wt%) blend were studied. The three compatibilizers compared were: (Styrene Ethylene Butylene Styrene)-grafted-(glycidyl methacrylate); (Styrene Ethylene Butylene Styrene) -grafted -(maleic anhydryde); (polyolefin) -grafted -(glycidyl methacrylate), abbreviated to: SEBS-g-GMA, SEBS-g-MA and POE-g-GMA respectively. The effective grafting content was the same for all three compatibilizers. Before the comparison of the different compatibilizers was done, first the effects of three different processing temperatures and three different compatibilizer contents were investigated, based on the addition of SEBS-g-GMA. The compatibilization effect was significantly improved with an increase in processing temperature from 250 to 300 8C. The toughness was increased with almost a factor two and a decrease in the average domain size of the dispersed phase was observed. An increase in compatibilizer content from 0.25 to 2.5 wt% resulted in a finer dispersity as well as in a steep increase in toughness, which was noted to approach the brittle-to-ductile transition. The comparison of the three compatibilizers was subsequently done at the most promising processing temperature and content: 300 8C and 2.5 wt%. The results showed that the addition of SEBS-g-MA and POE-g-GMA had a less significant positive effect on the compatibilization compared to SEBS-g-GMA. The difference is attributed to a higher reactivity for GMA compared to MA and a higher possibility for migration towards the PP-PET interface for the SEBS chain compared to the POE chain.

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“…However, PVAc also exhibits some defects (e.g., poor cold tolerance, poor mechanical stability, poor thermal stability, and poor water resistance) that directly affect the related integrated value of utilization and processing. The copolymerizing and blending with other polymers, or incorporating nanofillers, can improve or make up them. About motmorillonite (MMT) or organic motmorillonite (OMMT) reinforcing PVAc, the emulsion polymerization method, or called in situ polymerization, is often used.…”

Section: Introductionmentioning

confidence: 99%

Using Vinyl Acetate, N‐Hydroxymethyl Acrylamide, and Montmorillonite Intercalated by a Dioctadecyl Dimethyl Ammonium Bromide Surfactant to Prepare Exfoliated Nanocomposite through In Situ Polymerization

Cui

Fang

2015

Adv Polym Technol

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In this study, vinyl acetate, N-hydroxymethyl acrylamide (NMA), and organic montmorillonite intercalated by a dioctadecyl dimethyl ammonium bromide surfactant (MMT-DOAB) were used to prepare exfoliated nanocomposites through in situ polymerization. Wide-angle X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, power-law function equation, Newtonian fluid flow equation, Cross-Williamson model viscous equation, Hooke's law, and Poisson's ratio equation revealed the structures, dispersion, rheology, and static tensile properties. The exfoliated nanocomposites were pseudoplastic non-Newtonian fluids with good dispersion in water, great storage stability, and high static tensile strength at 6.89-8.15 MPa. The contents of NMA and MMT-DOAB increased with the changes in synthesis precursors, as the calculated molecular weights did. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2017, 36, 21601; View this article online at wileyonlinelibrary.com.

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A comparative study on the efficiencies of polyethylene compatibilizers by using theoretical methods

Cited by 17 publications

References 44 publications

Temperature Assisted in-Situ Small Angle X-ray Scattering Analysis of Ph-POSS/PC Polymer Nanocomposite

Temperature Assisted in-Situ Small Angle X-ray Scattering Analysis of Ph-POSS/PC Polymer Nanocomposite

Influence of Processing Parameters and Composition on the Effective Compatibilization of Polypropylene–Poly(ethylene terephthalate) Blends

Using Vinyl Acetate, N‐Hydroxymethyl Acrylamide, and Montmorillonite Intercalated by a Dioctadecyl Dimethyl Ammonium Bromide Surfactant to Prepare Exfoliated Nanocomposite through In Situ Polymerization

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