Nanopatterned Polymer Brushes by Combining AFM Anodization Lithography with Ring‐Opening Metathesis Polymerization in the Liquid and Vapor Phase

Lee, Woo‐Kyung; Caster, Kenneth C.; Kim, Jeong‐Han; Zauscher, Stefan

doi:10.1002/smll.200500470

Cited by 51 publications

(46 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Unfortunately, our efforts to use the same conditions to polymerize cyclooctatetraene to yield surface-initiated COT-derived polyacetylene (pCOT, Scheme 2) were not very successful. This technique, as well as one previously reported by Lee et al, 17 gave polymer films of only about 2 nm thickness by ellipsometry in our hands. Another report also found COT to polymerize slowly and give little material on the surface.…”

Section: Resultssupporting

confidence: 88%

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

Marshall¹

2018

Preprint

View full text Add to dashboard Cite

We report functionalized thin films based on endgroup and sidechain modification of polymer films prepared using surface-initiated ring-opening metathesis polymerization (SI-ROMP). Poly(norbornene) can be readily end-functionalized by cross-metathesis with various vinyl chain-transfer agents; however, polyacetylene prepared from cyclooctatetraene (pCOT) is inefficiently end-functionalized (ca. 20% of monolayer surface coverage), while a fused norbornene-teraryl monomer was not successfully endfunctionalized. While these techniques can be used to tune the wettability of a surface or to coat a surface with a thin film of conjugated polymer, efficient "molecular wire" architectures, where a conjugated, intrinsically conducting polymer connects a surface and a molecular species, have still not been constructed using ROMP. We propose a systematic strategy for doing so using the active ester-bearing monomer NbNHS, and demonstrate this strategy's feasibility by preparing SI-ROMP films of poly-NbNHS up to 45 nm in thickness and demonstrating these films' reactivity with a primary amine.

show abstract

Section: Resultssupporting

confidence: 88%

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

Marshall¹

2018

Preprint

View full text Add to dashboard Cite

show abstract

“…Owing to this fabrication method, the limit of resolution for the grafting of functional macromolecular systems consisting single chains in line has been approached. However, the [16] Such pre-functionalized surfaces offer several advantages. For example, the surface can be passivated toward undesired adsorption during the following fabrication steps (e.g., deposition of polymeric species during SIP).…”

Section: Introductionmentioning

confidence: 99%

pH Responsive Polymeric Brush Nanostructures: Preparation and Characterization by Scanning Probe Oxidation and Surface Initiated Polymerization

Benetti

Chung

Vancso

2009

Macromol. Rapid Commun.

View full text Add to dashboard Cite

pH-responsive PHEMA-based polymeric nanostructures were grown in a controlled manner by ATRP-based surface-initiated polymerization. Initiator nanopatterns were obtained on silicon wafers covered with OTS resists made by AFM scanning probe oxidation lithography. AFM images confirmed isolated grafting of stimuli-responsive hedge and dot brush structures exhibiting dimensions corresponding to a few tens of chains.

show abstract

“…[ 50 , 54 ] This method, also called " grafting from ", is seen to be effective with the capability of controlling the molecular weight, dimensions, chain confi guration and composition of brushes. Previous examples include nanoshaving with atom-transfer radical polymerization (ATRP), [ 48a ] AFM electro-oxidation with ring-opening metathesis polymerization (ROMP), [ 55 ] nanografting with photopolymerization, [ 56 ] and DPN with various SIPs. [ 57 ] Very recently, we developed a new SPL technique, namely dip-pen nanodisplacement lithography (DNL), for programming patterned nanostructures of polymer brushes (Figure 7 ).…”

Section: Polymer Brushesmentioning

confidence: 99%

Polymer Nanostructures Made by Scanning Probe Lithography: Recent Progress in Material Applications

Xie

Zhou

Tao

et al. 2012

Macromol. Rapid Commun.

View full text Add to dashboard Cite

Scanning probe lithography (SPL) is a series of techniques that utilizes a scanning probe or an array of probes for surface patterning. Recent developments of new material systems and patterning approaches have made SPL a promising, low‐cost, bench‐top, and versatile tool for fabricating various polymer nanostructures, with extraordinary importance in physical sciences, life sciences and nanotechnology. This feature article highlights the recent progress in four material applications: polymer resists, polymeric carriers for patterning functional materials, electronically active polymers and polymer brushes for tailoring surface morphology and functionality. An overview of future possibilities, with regard to challenges and opportunities in this field, is given at the end of the paper.

show abstract

Nanopatterned Polymer Brushes by Combining AFM Anodization Lithography with Ring‐Opening Metathesis Polymerization in the Liquid and Vapor Phase

Cited by 51 publications

References 45 publications

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

pH Responsive Polymeric Brush Nanostructures: Preparation and Characterization by Scanning Probe Oxidation and Surface Initiated Polymerization

Polymer Nanostructures Made by Scanning Probe Lithography: Recent Progress in Material Applications

Contact Info

Product

Resources

About