𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thermotropic liquid crystalline polymers—22. Optical properties and structure of some cholesteric copolymers

✍ Scribed by Ya.S. Freidzon; N.I. Boiko; V.P. Shibaev; N.A. Platé


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
315 KB
Volume
22
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis


Copolymers of the nematogenic monomer, p-(E-acryloyloxycaproyloxy)-p'-methoxyphenylbenzoate, with various cholesterol-containing monomers were synthesized. The copolymers were shown to form mesophases of the cholesteric type. The dependence of the selective reflection of light on copolymer composition was studied. The copolymers with low content of chiral groups form monochromic cholesteric mesophases, with the cholesteric helix pitch being independent of temperature; the helix for copolymers with high content of chiral groups increases its pitch with increase of temperature.


📜 SIMILAR VOLUMES


Preparation and Properties of Cholesteri
✍ Andreas Hartwig; Tapan Kumar Mahato; Torsten Kaese; Dieter Wöhrle 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 212 KB

## Abstract **Summary:** Polyether network polymers with cholesteric superstructure are formed by the photochemically induced cationic copolymerisation of a nematic diepoxide with chiral epoxides. If a cholesteric superstructure is formed or not, depends on the temperature at which the photopolymer

Synthesis, structures, and properties of
✍ Jian-She Hu; Bao-Yan Zhang; Lu-Mei Liu; Fan-Bao Meng 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 210 KB 👁 2 views

## Abstract The synthesis of three cholesteric monomers and side‐chain liquid‐crystalline polymers was described. The structure–property relationships of monomers IM–IIIM and polymers IP–IIIP were discussed. Their phase behavior and optical properties were investigated by differential scanning calo

Studies on thermotropic liquid crystalli
✍ Tzea-Ching Hung; Shih-Jieh Sun; Teh-Chou Chang 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 593 KB

Three series of the thermotropic liquid crystalline copoly(imide-ester)s were prepared by direct polycondensation. The first two series of the copoly(imide-ester)s were synthesized from N-(4-carboxyphenyl) trimellitimide with N,N-di( hydroxypropyl) pyromellitic diimide and various aromatic diols. Th