Nanocontact printing stamp material via bi-functionalization of polyhedral oligomeric silsesquioxanes

Kastner, Julia; Lorret, O.; Rank, Andreas; Schwarzinger, Clemens; Dittert, B.; Mühlberger, M.

doi:10.1016/j.eurpolymj.2014.11.015

Cited by 4 publications

(5 citation statements)

References 38 publications

(47 reference statements)

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“…In addition, due to the hydrophobic surface of PDMS, the use of water-based inks containing compounds such as biomolecules or inorganic complexes is challenging [143]. To overcome these disadvantages, Kastner et al substituted PDMS by functionalized POSS [144]. For functionalization, they used epoxy and carboxylic as well as bifunctional epoxy-carboxylic groups that were covalently attached by platinum-catalyzed hydrosilylations.…”

Section: Printing and Inksmentioning

confidence: 99%

“…For functionalization, they used epoxy and carboxylic as well as bifunctional epoxy-carboxylic groups that were covalently attached by platinum-catalyzed hydrosilylations. Epoxy-functionalized To overcome these disadvantages, Kastner et al substituted PDMS by functionalized POSS [144]. For functionalization, they used epoxy and carboxylic as well as bifunctional epoxy-carboxylic groups that were covalently attached by platinum-catalyzed hydrosilylations.…”

Section: Printing and Inksmentioning

confidence: 99%

“…To overcome these disadvantages, Kastner et al substituted PDMS by functionalized POSS [ 144 ]. For functionalization, they used epoxy and carboxylic as well as bifunctional epoxy-carboxylic groups that were covalently attached by platinum-catalyzed hydrosilylations.…”

Section: Industrial Applicationsmentioning

confidence: 99%

See 2 more Smart Citations

Fifty Years of Hydrosilylation in Polymer Science: A Review of Current Trends of Low-Cost Transition-Metal and Metal-Free Catalysts, Non-Thermally Triggered Hydrosilylation Reactions, and Industrial Applications

2017

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Hydrosilylation reactions, the (commonly) anti-Markovnikov additions of silanes to unsaturated bonds present in compounds such as alkenes and alkynes, offer numerous unique and advantageous properties for the preparation of polymeric materials, such as high yields and stereoselectivity. These reactions require to be catalyzed, for which platinum compounds were used in the initial stages. Celebrating the 50th anniversary of hydrosilylations in polymer science and, concomitantly, five decades of continuously growing research, hydrosilylation reactions have advanced to a level that renders them predestined for transfer into commercial products on the large scale. Facing this potential transfer, this review addresses and discusses selected current trends of the scientific research in the area, namely low-cost transition metal catalysts (focusing on iron, cobalt, and nickel complexes), metal-free catalysts, non-thermally triggered hydrosilylation reactions (highlighting stimuli such as (UV-)light), and (potential) industrial applications (highlighting the catalysts used and products manufactured). This review focuses on the hydrosilylation reactions involving alkene reactants.

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Section: Printing and Inksmentioning

confidence: 99%

Section: Printing and Inksmentioning

confidence: 99%

See 1 more Smart Citation

Fifty Years of Hydrosilylation in Polymer Science: A Review of Current Trends of Low-Cost Transition-Metal and Metal-Free Catalysts, Non-Thermally Triggered Hydrosilylation Reactions, and Industrial Applications

2017

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“…For the os-POSS structure, the additional IR bands reported in the literature 35,36 were Si-H stretching vibrations at 900 and 2140 cm À1 due to the silane groups present. Since eight corners of the structure was functionalized with silane groups, it was very easy to recognize these additional Si-H peaks at 890 and 2140 cm À1 on the last IR spectrum given in Figure 6(a).…”

Section: Effects Of the Functional Groups On The Poss Structurementioning

confidence: 85%

Behaviour of PLA/POSS nanocomposites: Effects of filler content, functional group and copolymer compatibilization

Zeybek

Kaynak

2021

Polymers and Polymer Composites

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The main purpose of this study was to investigate influences of three parameters on the mechanical and thermal properties of the polylactide (PLA) matrix nanocomposites filled with polyhedral oligomeric silsesquioxane (POSS) particles. For the first parameter of “Filler Content”, nanocomposites with 1, 3, 5, 7 wt% basic POSS structure were compared. For the second parameter of “Functional Group,” basic POSS structure having only nonpolar isobutyl groups were compared with three other functionalized POSS structures; i.e. aminopropylisobutyl-POSS (ap-POSS), propanediolisobutyl-POSS (pd-POSS) and octasilane-POSS (os-POSS). Finally, for the third parameter of “Copolymer Compatibilization,” all specimens were compared before and after their maleic anhydride (MA) grafted copolymer compatibilization. Specimens were produced with twin-screw extruder melt mixing and shaped under compression molding. Various tests and analyses indicated that the optimum filler content for the improved mechanical properties was 1 wt%; while the optimum structure for strength and modulus was pd-POSS structure, in terms of fracture toughness it was basic POSS structure. Additional use of MA compatibilization was especially effective for the basic POSS and os-POSS particles.

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“…The present work attempt to study the effect of spacer chain length on the thermal and lithographic properties of silsesquioxane polymer by utilizing the epoxycyclohexyl as spacer group. Most attempts were made on alkylene epoxide group, e.g., allyl glycidy ether . It is envisage that epoxycyclohexyl presents an interesting aspect for studying pattern fidelity and resolution as after UV cured there remains the steric cyclic structure which could possibly affect efficient curing and mold filling.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Lithographic Performance of Silsesquioxane with Cycloaliphatic Epoxy‐Siloxane Hybrid Spacer for Soft Lithography

Ramli

Ramli²,

Mohamed

et al. 2017

Macro Materials & Eng

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Pattern replication and fidelity are crucial during soft lithography process. The flexibility and surface energy of the resist with that of the master mold are among the factors in determining such an effect. In this work, polysilsesquioxane bearing cycloaliphatic‐epoxy spacer of different chain length at tethered positions is synthesized. Pattern replication using soft lithography is made using polymethylmethacrylate (PMMA) as master mold. The thermal and UV‐cured lithographic performances are studied using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). It shows that chain length of spacer induces flexibility and thermal stability. Despite chain flexibility, increase in spacer length results in poor lithographic performance. This can be attributed to the behavior of spreading parameter with different surface energy between the PMMA mold and the polysiloxane resist surfaces.

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Nanocontact printing stamp material via bi-functionalization of polyhedral oligomeric silsesquioxanes

Cited by 4 publications

References 38 publications

Fifty Years of Hydrosilylation in Polymer Science: A Review of Current Trends of Low-Cost Transition-Metal and Metal-Free Catalysts, Non-Thermally Triggered Hydrosilylation Reactions, and Industrial Applications

Fifty Years of Hydrosilylation in Polymer Science: A Review of Current Trends of Low-Cost Transition-Metal and Metal-Free Catalysts, Non-Thermally Triggered Hydrosilylation Reactions, and Industrial Applications

Behaviour of PLA/POSS nanocomposites: Effects of filler content, functional group and copolymer compatibilization

Thermal and Lithographic Performance of Silsesquioxane with Cycloaliphatic Epoxy‐Siloxane Hybrid Spacer for Soft Lithography

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