Confined polydiacetylene polymerization reactions for programmed length control

Verstraete, Lander; Hirsch, Brandon E.; Greenwood, John; Feyter, Steven De

doi:10.1039/c7cc00885f

Cited by 27 publications

(29 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We recently described a new strategy for fabrication of patterned conducting polymers and magnetic nanoparticles that takes advantage of the photopolymerization property of self‐assembled diacetylenes (DA). It is well known that topochemical polymerization of self‐assembled DAs leads to formation of polydiacetylene (PDA) . Because DAs are typically soluble in most organic solvents and PDAs are not, non‐UV‐irradiated parts of films created in this manner can be removed by utilizing a solvent development protocol.…”

Section: Introductionmentioning

confidence: 99%

Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon

Seo

Kantha

Joung

et al. 2019

Small

View full text Add to dashboard Cite

Because of their unique structural and optical properties, 1D perylene diimide (PDI) derivatives have gained attention for use in optoelectronic devices. However, PDI‐containing self‐assembled supramolecular systems often are of limited use because they have supramolecular architectures that are held together by weak noncovalent π–π stacking, hydrogen bonding, and hydrophobic interactions. As a result, they are intrinsically unstable under solution‐processing conditions. To overcome this limitation, a polydiacetylene (PDA)‐based strategy is developed to construct a solvent‐resistant and stable PDI assembly. For this purpose, first the monomer PDI–BisDA is generated, in which two polymerizable diacetylene (DA) units are covalently linked to a PDI core. Importantly, 254 nm UV irradiation of self‐assembled PDI–BisDA nanofibers forms solvent‐resistant and stable PDI–PDA fibers. Owing to the presence of PDA, the generated polymer fibers display an increased photocurrent. In addition, the existence of PDA and PDI moieties in the fiber leads to the occurrence of switchable on–off fluorescence resonance energy transfer (FRET) between the PDI and reversibly thermochromic PDA chromophores.

show abstract

Section: Introductionmentioning

confidence: 99%

Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon

Seo

Kantha

Joung

et al. 2019

Small

View full text Add to dashboard Cite

show abstract

“…23 The power of controlled degrafting: a application of manual removal of grafts (marked with yellow circles) to promote b local (marked with the white rectangle) Ostwald ripening of physisorbed supramolecular assembly [109]. In situ STM lithography d of a dense adlayer of covalent grafts c for directed self-assembly (e, g) and tip induced polymerization (f, h) of 10,12-pentacosadiynoic acid [119]. a, b were adapted from [109] with permission from The Royal Society of Chemistry.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Reactivity on and of Graphene Layers: Scanning Probe Microscopy Reveals

Ivasenko

Feyter

2018

On-Surface Synthesis II

Self Cite

View full text Add to dashboard Cite

In this chapter we give an overview of different chemical transformations that can be done on graphene layers and characterized using scanning tunneling (STM) and atomic force microscopies (AFM). We place particular emphasis on the diversity of reactions, systems and synthetic strategies that are now available to surface scientists working in various fundamental and applied research fields. Using imine formation as the model reaction we discuss common principles of building block design and reaction outcomes specific to interfacial synthesis. Then other reactions are briefly overviewed, including: photo-and electrochemically assisted processes, transformations initiated by STM, and finally, reactions involving the covalent modification of graphene layers.O. Ivasenko (

show abstract

“…It has been demonstrated recently that the conjugated polydiacetylene polymers can be fabricated with well‐defined lengths by confining the liquid–solid molecular self‐assembly of 10,12‐pentacosadiynoic acid (PCDA) within nanocorrals created in chemically modified HOPG (CM‐HOPG). To this end, De Feyter and co‐workers covalently modified a HOPG surface using an electrochemical grafting procedure with an aqueous solution containing in situ generated 3,5‐bis‐ tert ‐butylbenzenediazonium cations …”

Section: Molecular Reactions: Formation Of Chemical Bondsmentioning

confidence: 99%

Chemical Synthesis at Surfaces with Atomic Precision: Taming Complexity and Perfection

et al. 2019

View full text Add to dashboard Cite

Scanning probe microscopy (SPM) is a powerful tool to study the structure and dynamics of molecules at surfaces and interfaces as well as to precisely manipulate atoms and molecules by applying an external force, by inelastic electron tunneling, or by means of an electric field. The rapid development of these SPM manipulation modes made it possible to achieve fine‐control over fundamental processes in the physics of interfaces as well as chemical reactivity, such as adsorption, diffusion, bond formation, and bond dissociation with precision at the single atom/molecule level. Their controlled use for the fabrication of atomic‐scale structures and synthesis of new, perhaps uncommon, molecules with programmed properties are reviewed. Opportunities and challenges towards the development of complex chemical systems are discussed, by analyzing potential future impacts in nanoscience and nanotechnology.

show abstract

Confined polydiacetylene polymerization reactions for programmed length control

Abstract: In situ nanocorrals on graphite yield oriented precursor self-assembly for controlled polymerization reactions.

Cited by 27 publications

References 37 publications

Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon

Covalently Linked Perylene Diimide–Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon

Reactivity on and of Graphene Layers: Scanning Probe Microscopy Reveals

Chemical Synthesis at Surfaces with Atomic Precision: Taming Complexity and Perfection

Contact Info

Product

Resources

About