✦ LIBER ✦

On the thermal behaviour and thermo-oxidative stability of liquid crystalline triphenylene compounds

✍ Scribed by B. Schartel; A. Kettner; R. Kunze; J. H. Wendorff; M. Hennecke

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 169 KB
Volume: 9
Category: Article
ISSN: 1616-301X
DOI: 10.1002/(sici)1099-0712(199903/04)9:2<55::aid-amo366>3.0.co;2-#

No coin nor oath required. For personal study only.

✦ Synopsis

Columnar discotic materials are considered for applications in the area of photoconductivity and light-emitting diodes. A major requirement is their stability at elevated temperatures and in the presence of oxygen. The thermal and thermo-oxidative behaviour of discotic triphenylene derivatives was investigated by us using various methods, in particular by chemiluminescence (CL), UV-vis absorption spectroscopy and in situ thermogravimetry-mass spectroscopy (TG-MS). Various degradation processes are described for increasing temperature, and their influences on functional properties are discussed.

📜 SIMILAR VOLUMES

The influence of the relative molecular

The influence of the relative molecular weight of natural rubber on its thermo-oxidative stability

✍ J. Hrivíková; A. Blažková; L. Lapčík 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 493 KB 👁 1 views

Synthesis of Mixed Tail Triphenylene Dis

Synthesis of Mixed Tail Triphenylene Discotic Liquid Crystals: Molecular Symmetry and Oxygen-Atom Effect on the Stabilization of Columnar Mesophases

✍ Ke-Qing Zhao; Ping Hu; Bi-Qin Wang; Wen-Hao Yu; Hong-Mei Chen; Xin-Ling Wang; Yo 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 205 KB

Small change in chemical structure of discotic liquid crystals can cause big difference in their mesomorphism. Replacing of the alkoxy peripheral chains of triphenylene by oxygen-atom containing ester chains would result in novel mesomorphism. A series of mixed tail triphenylenes containing propoxya

Influence of thermal history on the form

Influence of thermal history on the formation of liquid crystalline phase of hydroxyethyl cellulose acetate

✍ Hailing Wang; Yong Huang; Jiarui Shen 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 156 KB 👁 2 views

The influence of thermal history on the formation of HECA liquid crystalline phase was studied by DSC. It was found that the degree of ordering in the liquid crystalline phase was heterogeneous, and the multiphase transformation appears when the liquid crystalline phase transformed to the isotropic

Kinetic approach on stabilization of LDP

Kinetic approach on stabilization of LDPE in the presence of carnosic acid and related compounds. I. Thermal investigation

✍ S. Jipa; T. Zaharescu; R. Setnescu; L. M. Gorghiu; C. Dumitrescu; C. Santos; A. 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

The Unusual Thermal Stabilization of MOC

The Unusual Thermal Stabilization of MOCVD Precursors by the Dibenzoyl Methanate Group: Liquid Injection MOCVD of Tantalum Oxide and Niobium Oxide Using M(OEt)4(dbm) Precursors

✍ P. A. Williams; A. C. Jones; P. J. Wright; M. J. Crosbie; J. F. Bickley; A. Stei 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 281 KB 👁 1 views

The influence of selected organic compou

The influence of selected organic compounds on changes in the polymer thermal stability during suspension polymerization of vinyl chloride

✍ E. Turska; M. Obłój-Muzaj 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 487 KB 👁 2 views

## Abstract The effect of selected organic compounds on the variation of thermal stability of PVC during the polymerization has been studied. M̄~__w__~, molecular weight distribution, and syndiotactic dyads content were determined in the polymers obtained. The variation of thermal stability is corr