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ATR-FTIR spectroscopy as a tool for studies of polymer-polymer miscibility (1989)

Braun, D. ; Böhringer, B. ; Eidam, N.

Springer

Polymer bulletin 21 (1989), S. 63-68

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ISSN: 1436-2449

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Summary Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy is a useful technique for studies on specific interactions between polymers in miscible blends. The application of ATR-FTIR spectroscopy is demonstrated for blends of chlorine containing vinylpolymers of varying chlorine content with different polycarbonates. The miscibility is correlated to specific interactions between polar groups, leading to shifts of the infrared absorption bands.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00700270

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Degradation and stabilization of PVC in blendsPaper presented at the “15th Annual International Conference on Advances in the Stabilization and Degradation of Polymers” in Luzern (Switzerland), June 2-4, 1993. (1994)

Braun, D. ; Böhringer, B. ; Eidam, N. ; [et al.]

Weinheim : Wiley-Blackwell

Angewandte Makromolekulare Chemie 216 (1994), S. 1-19

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ISSN: 0003-3146

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Notes: Poly(vinylchloride) (PVC) was mixed with various poly(methacrylate)s, poly(carbonate)s and polymers containing nitrile groups (poly(acrylonitrile), poly(styrene-co-acrylonitrile), nitrile rubber, hydrogenated nitrile rubber) and/or C — C double bonds (nitrile rubber, high-impact poly(styrene)). The thermal stability was measured at 180°C in nitrogen, and the evolved HCl was detected by conductometry.It is shown that the nature of the ester group and the content of nitrile groups and C - C double bonds are the dominating factors for the thermal stability of poly(vinylchloride) in these blends. An influence of the miscibility of PVC with the various blend components on the thermal stability can not be clearly detected.Differential scanning calorimetry (DSC) was used as a powerful method to study the stabilizer distribution of heterogeneous PVC/poly(styrene-co-acrylonitrile) and PVC/poly(methylacrylate) blends. It is shown that the stabilizer can be solubilized either in the PVC phase (PVC/poly(methylacrylate)) or in both phases of the blends PVC/poly(styrene-co-acrylonitrile)).

Additional Material: 16 Ill.