Solution Properties of a Fluorinated Alkyl Methacrylate Polymer in Carbon Dioxide

Guo, Ji Yao; André, Pascal; Adam, M.; Panyukov, Sergey; Rubinstein, Michael; DeSimone, Joseph M.

doi:10.1021/ma052409k

Cited by 19 publications

(19 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was found that the thicknesses of the dry brushes after oxidative polymerization increased by 77% ( Figure 5 ). The monomer unit length in saturated polymers was estimated to be 0.26 nm [ 62 ], while in case of polythiophene this was around 0.39 nm. Thus, the formation of Poly(ProDOT) chains should force the formed ladder-like chains to adopt a more extended conformation compared to that of ProDOT-Poly(MM) brushes.…”

Section: Resultsmentioning

confidence: 99%

Ladder-like Polymer Brushes Containing Conjugated Poly(Propylenedioxythiophene) Chains

Grześ

Wolski

Uchacz

et al. 2022

IJMS

View full text Add to dashboard Cite

The high stability and conductivity of 3,4-disubstituted polythiophenes such as poly(3,4-ethylenedioxythiophene) (PEDOT) make them attractive candidates for commercial applications. However, next-generation nanoelectronic devices require novel macromolecular strategies for the precise synthesis of advanced polymer structures as well as their arrangement. In this report, we present a synthetic route to make ladder-like polymer brushes with poly(3,4-propylenedioxythiophene) (PProDOT)-conjugated chains. The brushes were prepared via a self-templating surface-initiated technique (ST-SIP) that combines the surface-initiated atom transfer radical polymerization (SI-ATRP) of bifunctional ProDOT-based monomers and subsequent oxidative polymerization of the pendant ProDOT groups in the parent brushes. The brushes prepared in this way were characterized by grazing-angle FTIR, XPS spectroscopy, and AFM. Steady-state and time-resolved photoluminescence measurements were used to extract the information about the structure and effective conjugation length of PProDOT-based chains. Stability tests performed in ambient conditions and under exposure to standardized solar light revealed the remarkable stability of the obtained materials.

show abstract

Section: Resultsmentioning

confidence: 99%

Ladder-like Polymer Brushes Containing Conjugated Poly(Propylenedioxythiophene) Chains

Grześ

Wolski

Uchacz

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…The correspondence between the size of the cube and the corresponding scale in real polymeric materials can be roughly estimated using the length of the Kuhn segment which corresponds to the averaged bond length in BFM. For example, the Kuhn’s length for PMMA is

nm [ 158 ] leading to the conclusion that the volume of the cube used to calculate V is approximately

[ 157 ].…”

Section: Methodsmentioning

confidence: 99%

Modeling of Nonlinear Optical Phenomena in Host-Guest Systems Using Bond Fluctuation Monte Carlo Model: A Review

et al. 2021

View full text Add to dashboard Cite

We review the results of Monte Carlo studies of chosen nonlinear optical effects in host-guest systems, using methods based on the bond-fluctuation model (BFM) for a polymer matrix. In particular, we simulate the inscription of various types of diffraction gratings in degenerate two wave mixing (DTWM) experiments (surface relief gratings (SRG), gratings in polymers doped with azo-dye molecules and gratings in biopolymers), poling effects (electric field poling of dipolar molecules and all-optical poling) and photomechanical effect. All these processes are characterized in terms of parameters measured in experiments, such as diffraction efficiency, nonlinear susceptibilities, density profiles or loading parameters. Local free volume in the BFM matrix, characterized by probabilistic distributions and correlation functions, displays a complex mosaic-like structure of scale-free clusters, which are thought to be responsible for heterogeneous dynamics of nonlinear optical processes. The photoinduced dynamics of single azopolymer chains, studied in two and three dimensions, displays complex sub-diffusive, diffusive and super-diffusive dynamical regimes. A directly related mathematical model of SRG inscription, based on the continuous time random walk (CTRW) formalism, is formulated and studied. Theoretical part of the review is devoted to the justification of the a priori assumptions made in the BFM modeling of photoinduced motion of the azo-polymer chains.

show abstract

“…In this work, we used the Kuhn segment molecu-lar weights 35,36 , average amorphous densities 36,37 , and glass transition temperatures 37,38 for both blocks to parameterize the coarse-grained model to describe a poly(methyl methacrylate)-block -poly(n-butyl acrylate)block -poly(methyl methacrylate) (PMMA-b-PnBA-b-PMMA) polymer system. The PMMA-b-PnBA-b-PMMA system was chosen for this work because it forms well-ordered morphologies and can be synthesized via controlled radical chemistries that are compatible with the widely-studied spiropyran mechanophores 21,39 .…”

Section: A Modelmentioning

confidence: 99%

Computational Study of Mechanochemical Activation in Nanostructured Triblock Copolymers

Huo¹,

Laaser²,

Statt³

2021

Preprint

View full text Add to dashboard Cite

Force-driven chemical reactions have emerged as an attractive platform for diverse applications in polymeric materials. However, the network topologies necessary for efficiently transducing macroscopic forces to the molecular scale are not well-understood. In this work, we use coarse-grained molecular dynamics simulations to investigate the impact of network topology on mechanochemical activation in a self-assembled triblock copolymers. We find that mechanochemical activation during tensile deformation depends strongly on both the polymer composition and chain conformation in these materials, with activation requiring higher stress in materials with a higher glassy block content, and most activation occurring in the tie chains connecting different glassy domains. Our work suggests that changes in the network topology significantly impact mechanochemical activation efficiencies in these materials, suggesting that this area will be a fruitful avenue for further experimental research.

show abstract

Solution Properties of a Fluorinated Alkyl Methacrylate Polymer in Carbon Dioxide

Cited by 19 publications

References 33 publications

Ladder-like Polymer Brushes Containing Conjugated Poly(Propylenedioxythiophene) Chains

Ladder-like Polymer Brushes Containing Conjugated Poly(Propylenedioxythiophene) Chains

Modeling of Nonlinear Optical Phenomena in Host-Guest Systems Using Bond Fluctuation Monte Carlo Model: A Review

Computational Study of Mechanochemical Activation in Nanostructured Triblock Copolymers

Contact Info

Product

Resources

About