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Related Concept Videos

Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

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Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
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Structures of Solids02:22

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Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
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Crystal Growth: Principles of Crystallization01:25

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Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
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Molecular Models02:00

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Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

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A modular approach towards functional supramolecular aggregates - subtle structural differences inducing liquid

Michael Pfletscher1, Christoph Wölper2, Jochen S Gutmann3

  • 1Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, 45141 Essen, Germany. michael.giese@uni-due.de.

Chemical Communications (Cambridge, England)
|June 18, 2016
PubMed
Summary
This summary is machine-generated.

Researchers developed a modular method for creating functional supramolecular materials. This approach enables the design of liquid crystals with tunable properties and rapid light responsiveness.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Organic Chemistry

Background:

  • Supramolecular functional materials are crucial for advanced technologies.
  • Developing responsive materials with tailored properties remains a challenge.
  • Hierarchical self-assembly offers a pathway to complex material structures.

Purpose of the Study:

  • To present an efficient modular approach for synthesizing supramolecular functional materials.
  • To investigate the self-assembly of azopyridine derivatives and hydrogen-bond donors.
  • To explore the structure-property relationships in resulting liquid crystalline materials.

Main Methods:

  • Utilized a modular strategy involving azopyridine derivatives and hydrogen-bond donors.
  • Investigated hierarchical self-assembly processes.
  • Characterized the mesomorphic behavior and photo-response of the synthesized liquid crystals.

Main Results:

  • Successfully formed discotic supramolecular assemblies.
  • Demonstrated that subtle core unit modifications induce mesomorphic behavior.
  • Observed a fast photo-response in phloroglucinol-based liquid crystals.
  • Highlighted the effectiveness of the modular methodology.

Conclusions:

  • The modular approach provides a versatile route to functional supramolecular materials.
  • Tailor-made properties, including photo-responsiveness, can be achieved by design.
  • This methodology facilitates the development of highly responsive advanced materials.