[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5012/bkcs.2012.33.2.492

In-situ Thermally Curable Hyper-branched 10H-butylphenothiazine

Jo, Mi-Young (Department of Polymer Engineering, Pukyong National University)
Lim, Youn-Hee (Samsung Advanced Institute and Technology)
Ahn, Byung-Hyun (Division of Advanced Materials and Engineering, Pukyong National University)
Lee, Gun-Dae (Department of Industrial Chemistry, Pukyong National University)
Kim, Joo-Hyun (Department of Polymer Engineering, Pukyong National University)

Publication Information

Bulletin of the Korean Chemical Society / v.33, no.2, 2012 , pp. 492-498 More about this Journal

Abstract

A hyper branched 10-butylphenothiazine with in-situ thermally curable methacrylate (1,3,5-tris-[ $\{$ 10-Butyl-3-(4-(2-methyl-acryloyloxy)-phenyl)-7-yl-10H-phenothiazine $\}$ ]-benzene, (tris-PTMA)) was synthesized successfully. From the TGA thermogram of tris-PTMA was thermally stable up to $336^{\circ}C$ . In the first heating scan of DSC thermogram, tris-PTMA showed glass transition temperature (Tg) at $140^{\circ}C$ and broad endothermic process in the region of $144-179^{\circ}C$ , which is thermally curing temperature. In the second heating process, $T_g$ exhibited at $158.7^{\circ}C$ and endothermic process was not observed. Thermally cured tris-PTMA showed no big change in the UV-visible spectrum after washing with organic solvent such as methylene chloride, chloroform, toluene, indicating that thermally cured film was very good solvent resistance. Thermally cured tris-PTMA was electrochemically stable and the HOMO energy level of tris-PTMA was -5.54 eV. The maximum luminance efficiency of double layer structured polymer light-emitting diode based on in-situ thermally cured tris-PTMA was 0.685 cd/A at 16.0 V, which was higher than that of the device without thermally cured tris-PTMA (0.348 cd/A at 15.0 V).

Keywords

In-situ thermal curing; Hyper branched 10H-butylphenothiazine; p-Type organic semiconductor; Hole transporting/injection material;

Citations & Related Records

Times Cited By Web Of Science : 1 (Related Records In Web of Science)
Times Cited By SCOPUS : 1

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