Search results

1 – 1 of 1
To view the access options for this content please click here
Article
Publication date: 3 July 2017

Rui Huang, Kangni Shen, Teng Xu and Yongjia Shen

The purpose of this paper is to explore the optic performance of extended stilbene derivative.

Abstract

Purpose

The purpose of this paper is to explore the optic performance of extended stilbene derivative.

Design/methodology/approach

Five steps were adopted to synthesise novel 4, 4′-bis (2-cyanostyryl) stilbene, which contained three vinyl units in the skeleton (S3E). The structure of S3E was characterised by 1H NMR and EI-MS. Its absorption and emission spectra were also given.

Findings

Compared to C.I. Fluorescent Brightener 199, which contains two vinyl units in the skeleton, S3E showed obvious bathochromic shifts in both UV-VIS and FL spectra. The maximum absorption wavelength and fluorescent wavelength were at 390 nm and 464 nm, respectively, with Stoke’s shift of 74 nm. The absolute fluorescence quantum yield was 0.42. Thermogravimetric analysis (TGA) revealed that the weight loss of S3E was less than 5 per cent at 300 °C. Moreover, the light resistance test showed that S3E in PVC plate can keep the good fluorescent intensity for more than seven days exposed to xenon light. Therefore, it is believed that S3E could satisfy the requirements of colouring PVC as a fluorescent dye.

Practical implications

S3E can be used as a candidate of fluorescent dye in the development of thermoplastics.

Originality/value

The present paper designed and synthesised a new derivative of stilbene, which showed its preference to be a colourant of thermoplastics.

Details

Pigment & Resin Technology, vol. 46 no. 4
Type: Research Article
ISSN: 0369-9420

Keywords

1 – 1 of 1