Competition Between Mesogens in Pyridone-based Supramolecular Calamitic, Banana and Discotic Liquid Crystals.   Kurt N. Wiegel, Department of Chemistry,

Slides:



Advertisements
Similar presentations
Water and solutions Water Polarity Solubility (like dissolves like)
Advertisements

C11 Liquid Crystals (HL) C11.1 Identify molecules that are likely to show liquid-crystal properties, and explain their liquid-crystal behavior on a molecular.
CHAPTER 14 Polymer Structures.
Author: Tim Verbovšek Mentor: doc. dr. Primož Ziherl.
The Science and Technology of Liquid Crystals Peter J. Collings Department of Physics & Astronomy Swarthmore College June 21, 2007 Return to "Recent Talks"
CB Layers at Different Temperature 1 “Formation of Liquid Crystalline Phases from a Langmuir Monolayer” By K.A. Suresh and A. Bhattacharyya.
1 Example of PDLC architectural window. 2 Polymer Dispersed Liquid Crystal (PDLC)
Phase Difference = Phase Difference = 0.05.
Structure-Property Relations: Calamitic Liquid Crystalline Materials M. Manickam School of Chemistry The University of Birmingham
A Coach’s Communication Strategy and its Relationship to a Collegiate Player’s Motivation to Perform as an Athlete Dana Neil, Andrea Pendergast, Amy Schmidt,
Broadband E-Commerce & Education Center Broadband Boot Camp 2015 June 3, Eau Claire WI Broadband & E-Commerce Education Center.
Basic Chemistry for Biology Water and Solutions. Water’s Life Supporting Properties Important to all living things 1.Moderation of temperature 2.Lower.
By:Kibrom *Phase: Solid *Density:2.64 *Liquid Density:2.375 *Melting Point:1050.
Science Update Programme Liquid Crystals and Their Applications
Side Chain Liquid Crystalline Polymers Polymers with mesogens attached as side chains can exhibit liquid crystalline properties. The extent to which.
Polymer Synthesis CHEM 421 Polymer Parameters Chemical structure –Chemical composition and distribution –Sequence length and distribution Molecular weight.
Chapter 12 Liquids and Solids.
Main points of study in Materials Chemistry and related IT learning materials Dr Patrio Chiu.
Oligomer synthesis Synthesis of the all-aromatic ester-based reactive liquid crystalline oligomers end-capped with phenylethynyl reactive end-groups. 1.
Liquids and Solids Solids.
Supramolecular main-chain liquid crystalline polymers and networks with competitive hydrogen bonding: a study of flexible bis-acids and a mixture of flexible.
by Swetha L VV pura college, Bangalore
The following lesson is one lecture in a series of Chemistry Programs developed by Professor Larry Byrd Department of Chemistry Western Kentucky University.
 decimals/cc-7th-fracs-to-decimals/v/converting-fractions-to-decimals-example.
REVIEW Chemistry of Life & Properties of Water. Atomic number =# of protons = # of electrons.
Swelling Dynamics of Liquid Crystalline Elastomers
Molecular structure of calamitic LCs rigid ring systemsterminal groups bridging groups (+linking groups) terminal groups (+linking groups) phenyl biphenyl.
Complex Fluids Group University of São Paulo, Brazil LYO-BANANA MESOPHASES COMPOSED BY A MIXTURE OF APOLAR SOLVENTS AND BENT- SHAPED MOLECULES O. G. Martins.
Accomplishments in the second year: Developed a phase field theory of photopolymerization induced crystallization in a blend of crystalline polymer and.
Modern Materials BLB Chapter 12.
Liquid Crystal Materials. Lyotropics Thermotropics amphiphilic molecules, polar and non-polar parts form liquid crystal phases over certain concentration.
Engineering Chemistry Copyright  2011 Wiley India Pvt. Ltd. All rights reserved.
Properties of Matter Macroscopic properties of matter vary greatly due to the type of bonding.
Liquid crystals : The fourth state of matter Thierry Chuard, LLB, Universität Bern.
1 2.3 Lyotropic Main Chain Liquid Crystalline Polymers Formed by dissolution of amphiphilic polymer molecules in appropriate solvents. Factors affect the.
ACTIVITY 50-THE CHEMISTRY OF ACIDS AND BASES You need:  Your book  Binder to take notes (or notebook)  Venn diagram you created in Act 48 (this may.
Liquid Crystals Thermotropic (temperature dependent)
SOLUTION CHEMISTRY.
Organic Chemistry.
4EOBBA/2RP/nSBZ Networks Results/Observations Synthetic Methodologies
Liquid Crystals The Fourth State of Matter? Dr. Vance Williams
HISTORY OF THE ATOMIC THEORY: Henry Moseley
Yuna Kim Adv. Funct. Mater. 2015, early view DOI: /adfm
Lecture #1 ~ Date__________
Computational and Topological Modeling of Mesophase Carbon Composites
Literature seminar Yuna Kim
انواع المخاليط (التدريس الابداعي )
Intermolecular Forces
Dynamic Anchoring of Nematic Liquid Crystals by Flowing Oil
Competition between Mesogens in Pyridone-Based Supramolecular Calamitic, Banana, and Discotic Liquid Crystals Kurt N. Wiegel. Department of Chemistry,
Design and Synthesis of Chiral Nematic Liquid Crystal Twist Agents
Can Liquid Crystals / Polymers
Micro Wax Disks: Fabrication and Characterization
Vinegar has a pungent odor. Carbon cannot be decomposed.
Design and Synthesis of Chiral Nematic Liquid Crystal Twist Agents
Another Example: Aluminum chloride, Al2Cl6, can be made by the reaction of aluminum with chlorine according to the following equation:                        2.
Phase Changes (Section 3.3)
The amount of matter (mass) in a given space (volume)
Stereochemical Studies of Fluorescent Tröger’s Bases
Chapter 13 Phase Changes Notes #8b.
Bonding and Electronic Structure of Reconstructed Surface Alloys
Water = 2 Hydrogen atoms + 1 Oxygen atom “H2O”
Endo. T(oC) -5oC/min Iso. K4 K3 K2 K1
REVIEW Properties of Water Chemistry of Life.
Dr. S. B Maulage Dept of Chemistry.
Condensed Phase Effects on the Structural Properties of Friedel-Crafts Intermediates: R-F’–BF3 James A. Phillips, Department of Chemistry, University of.
Competition Between Mesogens in Pyridone-based Supramolecular Calamitic, Banana and Discotic Liquid Crystals.   Kurt N. Wiegel, Department of Chemistry,
Particle physics, Nuclear physics, Organic Chemistry, Solids
Hydrocarbon, Fluorocarbon, and Mixed Hydrocarbon/Fluorocarbon Liquid Crystalline Materials from Predictable Supramolecular Assembly of Piperazine-2,5-diones.
Hydrocarbon, Fluorocarbon, and Mixed Hydrocarbon/Fluorocarbon Liquid Crystalline Materials from Predictable Supramolecular Assembly of Piperazine-2,5-diones.
Presentation transcript:

Competition Between Mesogens in Pyridone-based Supramolecular Calamitic, Banana and Discotic Liquid Crystals.   Kurt N. Wiegel, Department of Chemistry, University of Wisconsin-Eau Claire. Eau Claire, WI 54702. Hydrogen Bonded Liquid Crystalline Networks- Tetrafunctionalized Networks: A series of supramolecular mesogenic networks with increasing crosslink density inclusion have been created. All the networks display liquid crystallization characteristics at a surprisingly high network concentration, up to 25%. This percentage correlates closely with the tetrafunctionalization of the crosslinking agent. A statistical correlation can be drawn between these two phenomenon: when one acid group is always hydrogen bonded to the networking agent, then liquid crystallinity is destroyed. Hydrogen Bonded Liquid Crystalline Networks- Trifunctionalized Networks: In order to continue the study of these supramolecular networked systems, a trifunctional networking system was devised that displayed smectic phases until 15% and nematic phases cleared just under 33%- in keeping with the trifunctionalization of the networking agent and the statistical correlation posited above.