Determination of styrene-butadiene rubber composition by attenuated total internal reflection infrared spectroscopy

Орлов, А. В.; Kiselev, S. A.; Киселева, Е. А.; Budeeva, A. V.; Mashukov, V. I.

doi:10.1007/s10812-013-9719-2

Cited by 17 publications

(8 citation statements)

References 6 publications

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“…We find two strongly absorbing areas (red, marked A), corresponding to the green areas in the mechanical phase image (Fig. 1c) that subsequently can be identified as PMMA (note that SBR has no absorption in the spectral region of the C=O bond 34 ). Interestingly, we find significant s-SNOM phase signals within the SBR area, indicating the presence of PMMA.…”

Section: Resultsmentioning

confidence: 93%

Subsurface chemical nanoidentification by nano-FTIR spectroscopy

Govyadinov²,

et al. 2020

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Nano-FTIR spectroscopy based on Fourier transform infrared near-field spectroscopy allows for label-free chemical nanocharacterization of organic and inorganic composite surfaces. The potential capability for subsurface material analysis, however, is largely unexplored terrain. Here, we demonstrate nano-FTIR spectroscopy of subsurface organic layers, revealing that nano-FTIR spectra from thin surface layers differ from that of subsurface layers of the same organic material. Further, we study the correlation of various nano-FTIR peak characteristics and establish a simple and robust method for distinguishing surface from subsurface layers without the need of theoretical modeling or simulations (provided that chemically induced spectral modifications are not present). Our experimental findings are confirmed and explained by a semi-analytical model for calculating nano-FTIR spectra of multilayered organic samples. Our results are critically important for the interpretation of nano-FTIR spectra of multilayer samples, particularly to avoid that geometry-induced spectral peak shifts are explained by chemical effects.

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Section: Resultsmentioning

confidence: 93%

Subsurface chemical nanoidentification by nano-FTIR spectroscopy

Govyadinov²,

et al. 2020

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“…It should be noted that the characteristic peaks around 834 cm −1 for neat PVC shifted to higher wave numbers (see the enlarged area in Figure ) with the introduction of ASA. While for ASA, it has a characteristic peak at 841 cm −1 is the CH out‐of‐plane bending vibration of the benzene ring . Thereby, we believe that these two characteristic peaks were merged together.…”

Section: Resultsmentioning

confidence: 86%

Effect of core–shell structures of acrylonitrile–styrene–acrylate (ASA) terpolymer on the properties of poly(vinyl chloride) (PVC)/ASA blends: Miscibility, toughness, and heat resistance

Zhang

2018

J of Applied Polymer Sci

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In this work, acrylonitrile-styrene-acrylate (ASA) terpolymer was used to toughen rigid poly(vinyl chloride) (PVC). ASA has a core-shell structure, where the poly(butyl acrylate) (PBA) serves as the soft core while styrene-acrylonitrile (SAN) copolymer works as the rigid shell. Herein, The PBA core content in ASA was varied from 0 to 80 wt %, and its effect on the physiochemical properties was investigated. It was found that the hard shell of ASA was miscible with PVC matrix, providing good interfacial adhesion between ASA and PVC. Increasing the soft PBA content considerably improved the room-temperature impact toughness, and a sharp brittle-ductile transition (BDT) as a function of PBA content was observed. However, as the testing temperature decreased to 0 and −30 C, the toughening effect became limited, and the BDT first shifted to high PBA content region and finally disappeared. It was suggested that whether the toughening effect can be achieved depended on the thickness of hard shell and the relaxation behavior of PBA core. Albeit the loss in rigidity was accompanied, the accomplished toughening effect was not on the sacrifice of heat distortion temperature.

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“…There were not changes in the region 1200–600 cm −1 as show on Figure . It was possible to notice the characteristics bands of SEBS in 699 and 759 cm −1 due to out‐of‐plan bending of C‐H in aromatic monosubstituted ring of styrene units . Skeletal vibrations representing CC stretching of aromatic styrene ring appeared at 1493 cm −1 45 and rocking vibration of CH 2 from ethylene appear at 720 cm −1 .…”

Section: Resultsmentioning

confidence: 94%

“…Skeletal vibrations representing CC stretching of aromatic styrene ring appeared at 1493 cm −1 45 and rocking vibration of CH 2 from ethylene appear at 720 cm −1 . Bands in 1452 and 1376 cm −1 were in plane bending of the C‐H from CH 2 and CH 3 , common to all components of the blend …”

Section: Resultsmentioning

confidence: 98%

Efficiency of silver‐based antibacterial additives and its influence in thermoplastic elastomers

Tomacheski

Pittol

Ribeiro

et al. 2016

J of Applied Polymer Sci

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Styrene-butylene/ethylene-styrene-based thermoplastic elastomers (TPE) are polymers with soft touch properties that are widely used for manufacturing devices that involve hand contact. However, when contaminated with microorganisms these products can contribute to spreading diseases. The incorporation of antibacterial additives can help maintain low bacteria counts. This work evaluated the antibacterial action of TPE loaded with silver ions and silver nanoparticles. The additives nanosilver on fumed silica (NpAg_silica), silver phosphate glass (Ag 1 _phosphate), and bentonite organomodified with silver (Ag 1 _bentonite) were added to the TPE formulation. The compounds were evaluated for tensile and thermal properties and antimicrobial activity against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). All the additives eliminated over 90% of E. coli, but only NpAg_silica killed more than 80% of S. aureus population. The better effect of NpAg_silica was attributed to the additive's high specific surface area, which promoted greater contact with bacteria cells.

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Determination of styrene-butadiene rubber composition by attenuated total internal reflection infrared spectroscopy

Cited by 17 publications

References 6 publications

Subsurface chemical nanoidentification by nano-FTIR spectroscopy

Subsurface chemical nanoidentification by nano-FTIR spectroscopy

Effect of core–shell structures of acrylonitrile–styrene–acrylate (ASA) terpolymer on the properties of poly(vinyl chloride) (PVC)/ASA blends: Miscibility, toughness, and heat resistance

Efficiency of silver‐based antibacterial additives and its influence in thermoplastic elastomers

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