Two-phase nanoscale morphology of polymer/LC composites

Vaia, Richard A.; Tomlin, D. W.; Schulte, M. D.; Bunning, Timothy J.

doi:10.1016/s0032-3861(00)00462-6

Cited by 44 publications

(29 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, PIPS with spatially localized photoinitiation, was used to obtain composite films with liquid crystal-rich and liquid crystal-poor areas. [32][33][34][35][36] Figure 1 illustrates the approach to lithographic PIPS of semiconductor NCs in polymer films. A liquid homogeneous mixture of a monomer, NCs, and a photoinitiator is introduced in a cell bound with UV-transparent windows.…”

Section: Introductionmentioning

confidence: 99%

Patterning Semiconductor Nanocrystals in Polymer Films

Paquet

Kumacheva

2007

Adv Funct Materials

View full text Add to dashboard Cite

This paper reports a method of patterning semiconductor nanocrystals (NCs) in a polymer film. By combining lithographic concept with polymerization‐induced phase separation in a NC‐monomer mixture, we produced topographic and lateral compositional patterns in NC‐polymer films. The quality of the patterns was controlled by the competition between the rate of polymerization‐induced phase separation and the change in viscosity of the polymerizing mixture.

show abstract

Section: Introductionmentioning

confidence: 99%

Patterning Semiconductor Nanocrystals in Polymer Films

Paquet

Kumacheva

2007

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Previous work shows that the 'reverse morphology' [1,3,4,6] develops in these systems. Early in the reaction, a highmolecular-weight polymer network phase-separates as spherical beads [6] that appear aggregated into a loose network with pores varying in size and shape [4].…”

Section: Introductionmentioning

confidence: 90%

“…Polymer-dispersed liquid crystals (PDLCs) are of technological importance for electro-optic applications such as privacy windows, electro-optic shutters, and largearea flat-panel displays [1][2][3][4]. PDLCs are prepared by premixing a low-molar-mass liquid crystal (LC) solvent and a monomer into a uniform syrup.…”

Section: Introductionmentioning

confidence: 99%

“…The specific recipe discussed in this work has been investigated extensively with regard to holographically cured PDLC films (H-PDLC) [1,7,11,12]. The recipe has been optimized to sequester nanoscale LC domains (!100 nm), thereby eliminating scattering problems associated with larger twophase structures [3]. To ensure nanoscale domains, highfunctionality monomers are used as the majority constituent in the pre-polymer syrup [12].…”

Section: Introductionmentioning

confidence: 99%

“…However, the optical characteristics of PDLCs are also dependent on polymer architecture and the nature and rate of polymerization, which determine the spatially varying two-phase structure [3]. Almost no research focuses on the polymer structure or the interfaces that develop between the polymer and LC phases.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Interface morphology and phase separation in polymer-dispersed liquid crystal composites

Justice

Schaefer

Vaia

et al. 2005

Polymer

View full text Add to dashboard Cite

Sulfur/Oxygen Codoped Porous Hard Carbon Microspheres for High‐Performance Potassium‐Ion Batteries

Chen

Wang

Liang

et al. 2018

Advanced Energy Materials

392

265

View full text Add to dashboard Cite

Potassium‐ion batteries (KIBs) are very promising alternatives to lithium‐ion batteries (LIBs) for large‐scale energy storage. However, traditional carbon anode materials usually show poor performance in KIBs due to the large size of K ions. Herein, a carbonization‐etching strategy is reported for making a class of sulfur (S) and oxygen (O) codoped porous hard carbon microspheres (PCMs) material as a novel anode for KIBs through pyrolysis of the polymer microspheres (PMs) composed of a liquid crystal/epoxy monomer/thiol hardener system. The as‐made PCMs possess a porous architecture with a large Brunauer–Emmett–Teller surface area (983.2 m2 g−1), an enlarged interlayer distance (0.393 nm), structural defects induced by the S/O codoping and also amorphous carbon nature. These new features are important for boosting potassium ion storage, allowing the PCMs to deliver a high potassiation capacity of 226.6 mA h g−1 at 50 mA g−1 over 100 cycles and be displaying high stability by showing a potassiation capacity of 108.4 mA h g−1 over 2000 cycles at 1000 mA g−1. The density functional theory calculations demonstrate that S/O codoping not only favors the adsorption of K to the PCMs electrode but also reduces its structural deformation during the potassiation/depotassiation. The present work highlights the important role of hierarchical porosity and S/O codoping in potassium storage.

show abstract

Two-phase nanoscale morphology of polymer/LC composites

Cited by 44 publications

References 13 publications

Patterning Semiconductor Nanocrystals in Polymer Films

Patterning Semiconductor Nanocrystals in Polymer Films

Interface morphology and phase separation in polymer-dispersed liquid crystal composites

Sulfur/Oxygen Codoped Porous Hard Carbon Microspheres for High‐Performance Potassium‐Ion Batteries

Contact Info

Product

Resources

About