Effect of substrates on the structure of polymer interphases

Ondrus, D. J.; Boerio, F. J.

doi:10.1016/0021-9797(88)90357-8

Cited by 40 publications

(27 citation statements)

References 5 publications

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“…3 shows the spectra of the amino siloxane layer with the bicarbonate groups which were obtained after deposition in the aqueous solution in comparison to the partially converted bicarbonate groups after heating. The bands at 1 565 cm -1 , 1 485 cm -1 and 1 326 cm -1 arise from the stretching vibrations of the carbonyl groups and the bicarbonate salt 17,23) . Furthermore, the enhanced deformation bands between 1 635 -1 400 cm -1 represent impacts of the formed bicarbonate salt.…”

Section: Functionalization Of the Silicon Surfacementioning

confidence: 98%

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

Bayer

Eichhorn²,

Grundke

et al. 1999

Macromol. Chem. Phys.

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SUMMARY: The interactions of two reactive maleic anhydride copolymers, a styrene maleic anhydride copolymer and an alternating copolymer of malic anhydride and a-olefin side chains, with amino-functionalized surfaces were studied by means of FTIR-ATR spectroscopy. The interfacial processes were detected at a planar surface of a thermally oxidized silicon as internal reflecting element. This ATR element can be understood as a model for a glass fiber which is used as reinforcing material in polymer matrices. A typical glass fiber coupling agent, c-aminopropyltriethoxysilane (c-APS), was used to functionalize the silicon dioxide layer. It was found that the amino groups of the amino siloxane network layer, which were obtained by a coating procedure with c-APS, react with the anhydride groups of the copolymer melt to form amic acid structures and imide structures depending on the chemical composition of the copolymers and the temperature.

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Section: Functionalization Of the Silicon Surfacementioning

confidence: 98%

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

Bayer

Eichhorn²,

Grundke

et al. 1999

Macromol. Chem. Phys.

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“…Further, microparticles were dried at temperatures between 110 and 115°C. Ondrus and Boerio (1988) found that on copper and 2024 aluminum, amino groups oxidized to imines after 1 h at 110°C, whereas amino groups on titanium, iron, and 1100 aluminum were resistant to oxidation at this temperature. Thus, the chemical nature of the surface oxide appears to be important.…”

Section: Discussionmentioning

confidence: 99%

Detection of functional groups and antibodies on microfabricated surfaces by confocal microscopy

Nashat

Moronne

Ferrari

1998

Biotechnol. Bioeng.

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Fluorescence confocal microscopy was used to characterize micron‐sized microfabricated silicon particles and planar oxide surfaces after silanization and immobilization of IgG antibody. Surfaces treated with amino‐ and mercaptosilanes were tested for the presence of amine and sulfhydryl groups by labeling with specific fluorescein probes. In addition, human antibody (IgG) was immobilized to the thiol‐coated microparticles using the heterobifunctional crosslinker succinimidyl 4‐(N‐maleimidolmethyl)‐cyclohexane‐1‐carboxylate. Estimates of the surface density of IgG were consistent with 8.3% of a monolayer of covalently‐bound antibody. Confocal images confirmed uniform layers of both silanes and antibodies on the microparticles. The sensitivity limit for the confocal measurements was determined to be as low as 1.5 × 10−5 fluors per nm2. © 1998 John Wiley & Sons, Inc. Biotechnol Bioeng 60: 137–146, 1998.

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“…SERS has also been used extensively to understand molecular mechanisms relevant to adhesion of polymers and polymer-metal interactions. The major contributions in this area are obviously credited to Boerio and co-workers (80)(81)(82)(83)(84), who successfully established the effect of substrates on various metal-polymer chemical reactions. With the use of FT Raman, SERS may become an even more powerful approach to the analysis of polymers.…”

Section: Ft Raman Spectroscopy In Polymer Analysismentioning

confidence: 99%

Fourier Transform Infrared and Fourier Transform Raman Spectroscopy of Polymers

Urban

1993

Advances in Chemistry

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This chapter covers the fundamental principles and current applications of Fourier transform (FT) infrared and Fourier transformRaman spectroscopies as utilized in the analysis of polymeric materials. The primary emphasis of the first part is on the principles and advantages of these interferometric methods, whereas the remaining sections illustrate numerous applications focusing on the structure--property considerations in polymers. Particular attention is given to the most recent developments in FT analysis and includes examples of structural and conformational analysis of polymers, biological studies, and the applications of FT infrared and Raman microscopy to remote measurements. The differences and the complementary nature of infrared and Raman spectroscopies are also presented. EJXPERIMENTAL SCIENCES HAVE BEEN PROFOUNDLY INFLUENCED by the development of novel instrumentation. Virtually all scientific instrumentation is now under computer control, and sophisticated, faster data collection allows scientists to channel their resources more effectively toward particular goals. The sophistication of many current physical approaches mandates the use of highly sensitive, fast instruments and reasonably powerful data acquisi tion computers to attain insights about fundamental aspects of processes under investigation. Examples of such sophisticated interplay are infrared and

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Effect of substrates on the structure of polymer interphases

Cited by 40 publications

References 5 publications

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

FTIR spectroscopic studies of interfacial reactions between amino functionalized silicon surfaces and molten maleic anhydride copolymers

Detection of functional groups and antibodies on microfabricated surfaces by confocal microscopy

Fourier Transform Infrared and Fourier Transform Raman Spectroscopy of Polymers

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