SYNTHESIS AND THERMO-STABILITY INVESTIGATION OF BLUE ELECTROLUMINESCENT POLY(9,9′-DIOCTYLFLUORENE) END_CAPPED WITH HINDERED AMINE LIGHT STABILIZER

SI Sanmin; XIE Linghai; WEI Wei; PENG Bo; HUANG Wei

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SYNTHESIS AND THERMO-STABILITY INVESTIGATION OF BLUE ELECTROLUMINESCENT POLY(9,9′-DIOCTYLFLUORENE) END_CAPPED WITH HINDERED AMINE LIGHT STABILIZER

Research Article | 更新时间：2021-03-19

- SYNTHESIS AND THERMO-STABILITY INVESTIGATION OF BLUE ELECTROLUMINESCENT POLY(9,9′-DIOCTYLFLUORENE) END_CAPPED WITH HINDERED AMINE LIGHT STABILIZER
- Acta Polymerica Sinica Issue 2, Pages: 148-152(2007)
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- Published：20 February 2007，
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SI Sanmin, XIE Linghai, WEI Wei, PENG Bo, HUANG Wei. SYNTHESIS AND THERMO-STABILITY INVESTIGATION OF BLUE ELECTROLUMINESCENT POLY(9,9′-DIOCTYLFLUORENE) END_CAPPED WITH HINDERED AMINE LIGHT STABILIZER. [J]. Acta Polymerica Sinica (2):148-152(2007)
DOI：

SI Sanmin, XIE Linghai, WEI Wei, PENG Bo, HUANG Wei. SYNTHESIS AND THERMO-STABILITY INVESTIGATION OF BLUE ELECTROLUMINESCENT POLY(9,9′-DIOCTYLFLUORENE) END_CAPPED WITH HINDERED AMINE LIGHT STABILIZER. [J]. Acta Polymerica Sinica (2):148-152(2007) DOI：

摘要

以五甲基哌啶醇、对溴苯酰氯为原料合成了一种受阻胺抗氧稳定剂

通过Suzuki反应将其封端到聚(9

9-二辛基)芴上.通过核磁共振谱、凝胶渗透色谱对合成材料的分子结构进行了表征；并利用荧光发射光谱和退火方法

对其光谱热稳定性进行了细致研究.实验结果表明

当在聚芴分子链上引入受阻胺五甲基哌啶醇后

其荧光发射光谱的稳定性显著提高

绿光区发射现象明显减弱.

Abstract

A novel hindered amine light stabilizer has been synthesized using 1

6-pentamethyl-4-piperidinol and 4-bromobenzoyl chloride as the raw materials

and has been utilized to end-cap the blue electroluminescent poly-(9

9′-dioctylfluorene).The chemical structure of the polymer has been characterized with nuclear magnetic resonance(1H-NMR) and gel permeation chromatograph (GPC).Its thermo-stability was investigated by comparing the fluorescent spectra after annealing at elevated temperature in air.It clearly demonstrated that the light fluorescent spectroscopic stability of the polymer was greatly improved and the common phenomenon of greenish blue emission has been effectively restrained after end-capped with the hindered amine light stabilizer.

关键词

聚芴受阻胺抗氧化绿光发射

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