Sonochemical polymerization of diphenylmethane

S. I. Nikitenko; Yu Koltypin; D. M. Pickup; E. R.H. Van-Eck; A. Gedanken

doi:10.1016/s1350-4177(02)00102-5

Sonochemical polymerization of diphenylmethane

S. I. Nikitenko, Yu Koltypin, D. M. Pickup, E. R.H. Van-Eck, A. Gedanken

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Sonolysis of diphenylmethane (DPhM) has been studied under the effect of 20 kHz ultrasound (absorbed acoustic power 0.45 W/ml, surface area of sonotrode 1 cm², volume of sonicated solution 100 ml) under argon at 60°C. The solid product of the sonolysis was characterized by elemental analysis, FTIR, ¹³C MAS NMR, TGA/DSC, XRD and TEM techniques. It was found that the sonolysis of DPhM causes formation of the polymer with the composition similar to crosslinked polystyrene. Assumed mechanism of DPhM sonolysis consists of DPhM molecules dissociation inside the cavitating bubble. Secondary radical scavenging and radical recombination processes yields the sonopolymer in the liquid phase. The breakdown of the aromatic ring during DPhM sonolysis confirms that a very high temperature established in the cavitating bubble.

Original language	English
Pages (from-to)	11-15
Number of pages	5
Journal	Ultrasonics Sonochemistry
Volume	10
Issue number	1
DOIs	https://doi.org/10.1016/s1350-4177(02)00102-5
State	Published - Jan 2003

Bibliographical note

Funding Information:
A. Gedanken is grateful for the support of the German Ministry of Science for the financial support through the Deutsche-Israeli DIP program. S.I. Nikitenko thanks the Bar-Ilan University Research Authority for his fellowship. Yu. Koltypin thanks the Ministry of Absorption, The Center for Absorption in Sciences, for its financial support.

Funding

A. Gedanken is grateful for the support of the German Ministry of Science for the financial support through the Deutsche-Israeli DIP program. S.I. Nikitenko thanks the Bar-Ilan University Research Authority for his fellowship. Yu. Koltypin thanks the Ministry of Absorption, The Center for Absorption in Sciences, for its financial support.

Funders	Funder number
Deutsche-Israeli
Ministry of Absorption
Bundesministerium für Bildung und Forschung

Keywords

Diphenylmethane
Polymerization
Ultrasound

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10.1016/s1350-4177(02)00102-5

Cite this

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title = "Sonochemical polymerization of diphenylmethane",

abstract = "Sonolysis of diphenylmethane (DPhM) has been studied under the effect of 20 kHz ultrasound (absorbed acoustic power 0.45 W/ml, surface area of sonotrode 1 cm2, volume of sonicated solution 100 ml) under argon at 60°C. The solid product of the sonolysis was characterized by elemental analysis, FTIR, 13C MAS NMR, TGA/DSC, XRD and TEM techniques. It was found that the sonolysis of DPhM causes formation of the polymer with the composition similar to crosslinked polystyrene. Assumed mechanism of DPhM sonolysis consists of DPhM molecules dissociation inside the cavitating bubble. Secondary radical scavenging and radical recombination processes yields the sonopolymer in the liquid phase. The breakdown of the aromatic ring during DPhM sonolysis confirms that a very high temperature established in the cavitating bubble.",

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author = "Nikitenko, {S. I.} and Yu Koltypin and Pickup, {D. M.} and Van-Eck, {E. R.H.} and A. Gedanken",

note = "Funding Information: A. Gedanken is grateful for the support of the German Ministry of Science for the financial support through the Deutsche-Israeli DIP program. S.I. Nikitenko thanks the Bar-Ilan University Research Authority for his fellowship. Yu. Koltypin thanks the Ministry of Absorption, The Center for Absorption in Sciences, for its financial support.",

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AU - Van-Eck, E. R.H.

AU - Gedanken, A.

N1 - Funding Information: A. Gedanken is grateful for the support of the German Ministry of Science for the financial support through the Deutsche-Israeli DIP program. S.I. Nikitenko thanks the Bar-Ilan University Research Authority for his fellowship. Yu. Koltypin thanks the Ministry of Absorption, The Center for Absorption in Sciences, for its financial support.

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N2 - Sonolysis of diphenylmethane (DPhM) has been studied under the effect of 20 kHz ultrasound (absorbed acoustic power 0.45 W/ml, surface area of sonotrode 1 cm2, volume of sonicated solution 100 ml) under argon at 60°C. The solid product of the sonolysis was characterized by elemental analysis, FTIR, 13C MAS NMR, TGA/DSC, XRD and TEM techniques. It was found that the sonolysis of DPhM causes formation of the polymer with the composition similar to crosslinked polystyrene. Assumed mechanism of DPhM sonolysis consists of DPhM molecules dissociation inside the cavitating bubble. Secondary radical scavenging and radical recombination processes yields the sonopolymer in the liquid phase. The breakdown of the aromatic ring during DPhM sonolysis confirms that a very high temperature established in the cavitating bubble.

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KW - Diphenylmethane

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Sonochemical polymerization of diphenylmethane

Abstract

Bibliographical note

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Keywords

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