Structure-property relationships in main chain liquid crystal polyesters with flexible spacers

1985 ◽  
Vol 72 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Robert W. Lenz
Keyword(s):  
Liquid Crystal ◽  
Main Chain ◽  
Structure Property ◽  
Structure Property Relationships

scholarly journals Synthesis of organic liquid crystals containing selectively fluorinated cyclopropanes

2020 ◽  
Vol 16 ◽  
pp. 674-680 ◽  
Author(s):  
Zeguo Fang ◽  
Nawaf Al-Maharik ◽  
Peer Kirsch ◽  
Matthias Bremer ◽  
Alexandra M Z Slawin ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Thermodynamic Properties ◽  
Organic Liquid ◽  
Dielectric Anisotropy ◽  
Structure Property ◽  
Structure Property Relationships

This paper describes the synthesis of a series of organic liquid crystals (LCs) containing selectively fluorinated cyclopropanes at their termini. The syntheses used difluorocarbene additions to olefin precursors, an approach which proved straightforward such that these liquid crystal candidates could be efficiently prepared. Their physical and thermodynamic properties were evaluated and depending on individual structures, they either displayed positive or negative dielectric anisotropy. The study gives some guidance into effective structure–property relationships for the design of LCs containing selectively fluorinated cyclopropane motifs.

scholarly journals Heterometal Grafted metalla-ynes and Poly(metalla-ynes): A Review on Structure–Property Relationships and Applications

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3654
Author(s):  
Rayya A. Al-Balushi ◽  
Ashanul Haque ◽  
Idris J. Al-Busaidi ◽  
Houda Al-Sharji ◽  
Muhammad S. Khan
Keyword(s):  
Physical Properties ◽  
Main Chain ◽  
Functional Materials ◽  
Photo Luminescence ◽  
Structural Features ◽  
Side Chain ◽  
Structure Property ◽  
Molecular Scaffolds ◽  
Structure Property Relationships ◽  
Rigid Rod

Metalla-ynes and poly(metalla-ynes) have emerged as unique molecular scaffolds with fascinating structural features and intriguing photo-luminescence (PL) properties. Their rigid-rod conducting backbone with tunable photo-physical properties has generated immense research interests for the design and development of application-oriented functional materials. Introducing a second d- or f-block metal fragment in the main-chain or side-chain of a metalla-yne and poly(metalla-yne) was found to further modulate the underlying features/properties. This review focuses on the photo-physical properties and opto-electronic (O-E) applications of heterometal grafted metalla-ynes and poly(metalla-ynes).

Structure–property relationships in segmented polyurethanes with metal chelates in the main chain

2000 ◽  
Vol 36 (6) ◽  
pp. 1113-1126 ◽  
Author(s):  
G. Georgoussis ◽  
A. Kanapitsas ◽  
P. Pissis ◽  
Yu.V. Savelyev ◽  
V.Ya. Veselov ◽  
...  
Keyword(s):  
Main Chain ◽  
Metal Chelates ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Segmented Polyurethanes

The Design, Synthesis and Structure-Property Relationships of Ferroelectric and Antiferroelectric Liquid Crystal Materials

2002 ◽  
Vol 276 (1) ◽  
pp. 219-237 ◽  
Author(s):  
Michael Hird ◽  
John W. Goodby ◽  
Paul Hindmarsh ◽  
Robert A. Lewis ◽  
Kenneth J. Toyne
Keyword(s):  
Liquid Crystal ◽  
Structure Property ◽  
Design Synthesis ◽  
Structure Property Relationships ◽  
Liquid Crystal Materials

scholarly journals Understanding structure–property relationships of main chain cyclopropane in linear polyesters

2020 ◽  
Vol 11 (39) ◽  
pp. 6251-6258
Author(s):  
Connor J. Stubbs ◽  
Andrew P. Dove
Keyword(s):  
Main Chain ◽  
Effective Means ◽  
Polymer Materials ◽  
Structure Property ◽  
Bulk Properties ◽  
Rigid Ring ◽  
Structure Property Relationships ◽  
Ring Structures

Rigid ring structures have gained increasing interest in the polymer materials community as an effective means to manipulate bulk properties. Here, we investigate structure–property relationships of the smallest ring: cyclopropane.

scholarly journals Main-Chain Phosphorus-Containing Polymers for Therapeutic Applications

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1716 ◽  
Author(s):  
Paul Strasser ◽  
Ian Teasdale
Keyword(s):  
Main Chain ◽  
Functional Materials ◽  
Synthesis Methods ◽  
Central Feature ◽  
Structure Property ◽  
Therapeutic Applications ◽  
Structure Property Relationships ◽  
Phosphorus Containing ◽  
Therapeutic Context ◽  
Art Research

Polymers in which phosphorus is an integral part of the main chain, including polyphosphazenes and polyphosphoesters, have been widely investigated in recent years for their potential in a number of therapeutic applications. Phosphorus, as the central feature of these polymers, endears the chemical functionalization, and in some cases (bio)degradability, to facilitate their use in such therapeutic formulations. Recent advances in the synthetic polymer chemistry have allowed for controlled synthesis methods in order to prepare the complex macromolecular structures required, alongside the control and reproducibility desired for such medical applications. While the main polymer families described herein, polyphosphazenes and polyphosphoesters and their analogues, as well as phosphorus-based dendrimers, have hitherto predominantly been investigated in isolation from one another, this review aims to highlight and bring together some of this research. In doing so, the focus is placed on the essential, and often mutual, design features and structure–property relationships that allow the preparation of such functional materials. The first part of the review details the relevant features of phosphorus-containing polymers in respect to their use in therapeutic applications, while the second part highlights some recent and innovative applications, offering insights into the most state-of-the-art research on phosphorus-based polymers in a therapeutic context.

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