Trialkylsilanes as reagents for the UV-induced surface modification of polybutadiene

Spanring, Julia; Buchgraber, Christian Hans; Ebel, Maria F.; Svagera, Robert; Kern, Wolfgang

doi:10.1016/j.polymer.2005.11.016

Cited by 28 publications

(29 citation statements)

References 29 publications

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“…[8] The distance between the inner face of the front window (made from CaF 2 ) and the sample surface was 7 mm. Polymer films were irradiated either with Hg lamp or a pulsed ArF* excimer laser in the presence of EDMS or gaseous TrMS.…”

Section: Irradiation Experimentsmentioning

confidence: 99%

“…The photoassisted introduction of alkylsilyl groups onto polybutadiene surfaces has been studied in detail and it has been found that a hydrogenation of the C C bonds proceeds as a side reaction. [8] In this contribution, we wished to investigate if UV surface modification with trialkylsilanes can be also applied to polymers which do not contain olefinic double bonds. We studied the behavior of the thermoplastic polymer polystyrene (PS) under UVirradiation in presence of UV sensitive trialkylsilanes (EDMS, TrMS).…”

Section: Introductionmentioning

confidence: 99%

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UV Assisted Surface Modification of Polystyrene in the Presence of Trialkylsilanes

Spanring

Buchgraber

Ebel

et al. 2005

Macro Chemistry & Physics

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Summary: A process for the photochemical modification of polystyrene (PS) surfaces employing organosilane compounds has been developed. Polystyrene was irradiated in presence of trialkylsilanes [ethyldimethylsilane (EDMS), trimethylsilane (TrMS)]. UV irradiation was carried out with a medium pressure (MP) Hg lamp and a 193 nm ArF* excimer laser. FT‐IR and X‐ray photoelectron spectroscopy (XPS) evidenced that after irradiation alkylsilyl groups were covalently bond to the polymer surface. Contact angle measurements proved a significant lowering in surface energy of polystyrene as a result of the photomodification process. When EDMS was used as photoreactive reagent, the introduction of SiH groups onto the polymer surface was also found. The introduction of SiH bonds onto polymer surfaces provides new possibilities for further surface functionalization. Atomic force microscopy (AFM) showed that Hg lamp irradiation does not exert significant changes in surface topography, while 193 nm excimer laser irradiation leads to surface corrugation. Summing up, it is demonstrated that organosilanes can be employed in UV reactions to attach silyl and also SiH groups onto polystyrene surfaces. Possible reaction mechanisms are discussed. magnified image

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Section: Irradiation Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

UV Assisted Surface Modification of Polystyrene in the Presence of Trialkylsilanes

Spanring

Buchgraber

Ebel

et al. 2005

Macro Chemistry & Physics

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“…[3] In a recent contribution, it was demonstrated that trialkysilanes such as trimethylsilane can be used to attach trialkysilyl groups onto the surface of polybutadiene in a UV-assisted hydrosilylation process. [4] In a similar fashion, this process can be applied to derivatives of PPV where the C --C bonds are partly hydrosilylated and partly hydrogenated. [5] Another approach is based upon the thiol-ene reaction: in a radical-mediated reaction, thiols are readily added to C --C groups both in elastomers [6] and derivatives of PPV [7] to give polymers functionalized with alkylthio substituents.…”

Section: Full Papermentioning

confidence: 99%

“…The isomerization is also detectable by the decreasing intensity of the signal at 3 007 cm À1 which stems from C-H stretch vibrations of C --C -H units. [4] Both after 180 and 600 s of UV processing (followed by hydrolysis), the presence of P-OH groups is detectable. The broad IR signals at 2 666 and 2 326 cm À1 are caused by P-OH stretch vibrations.…”

Section: Bromophosphonization Of Polybutadiene and Subsequent Hydrolysismentioning

confidence: 99%

UV‐Assisted Surface Modification of Polybutadiene with Phosphorus‐Containing Groups

Buchgraber

Svagera

Ebel

et al. 2007

Macro Chemistry & Physics

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A new method for the modification of polymer surfaces with phosphorus‐containing groups is described. Films of polybutadiene were UV‐irradiated in the presence of PBr3 vapor as a photoreactive agent. After subsequent reaction with water under aerobic conditions, phosphonic acid groups were present at the surface. Similarly, methanolysis yielded phosphonic acid esters at the polymer surface. These conversions have been evidenced by IR and XPS. Using contact masks, a patterned modification with phosphorus‐containing groups was achieved. The UV‐induced attachment of phosphonic acid groups onto polymer surfaces is a way towards biocompatible surfaces, e.g. for prosthetic materials.magnified image

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“…The development of modern technologies enables us to create polymer materials with a number of properties which would be impossible to realize in a single polymer. A polymer can acquire special properties either in the course of inter-chain polymer alloying by adding certain monomer units to the basic monomer being polymerized [1] or by modifying the ready-made sample [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Modification and bio‐testing of polyethylene films

Smokal

Krupka

Kolendo

2011

Materialwissenschaft Werkst

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New azidobenzenesulfonamides were synthesized and their photochemical properties were investigated. The surface modification of polyethylene (PE) films was carried out by using new azidobenzenesulfonamides was carried out.Antimicrobial activity of PE films with sulfonamide moiety was screened for vitro in the following bacterial: Staphylococcus aureus, Escherichia coli, Mycobacterium luteum. Preliminary screening of PE films with sulfonamide moiety revealed their inhibitory action against some kinds of bacteria and fungi.

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Trialkylsilanes as reagents for the UV-induced surface modification of polybutadiene

Cited by 28 publications

References 29 publications

UV Assisted Surface Modification of Polystyrene in the Presence of Trialkylsilanes

UV Assisted Surface Modification of Polystyrene in the Presence of Trialkylsilanes

UV‐Assisted Surface Modification of Polybutadiene with Phosphorus‐Containing Groups

Modification and bio‐testing of polyethylene films

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