Synthesis and study of optically transparent benzguanamine oligomers with luminescent properties

Vladimir Lebedev

doi:10.15587/1729-4061.2016.65479

Abstract

The study of the synthesis of transparent BF oligomers and polymers with luminescent properties, which is an important issue in terms of obtaining new optically transparent luminescent polymers with high operational and spectral properties was carried out. It is shown that modification of benzguanaminе oligomers by glycerol with a content of 20 wt %, allows obtaining materials with high lighttransmittance, low residual stress, shrinkage and water absorption and high physical–mechanical characteristics. At the same time, such an important characteristic of scintillation plastics as BAL, in the aforementioned materials is at level with the PS and PMMA – 40 – 60 to 50 cm – 200 cm. The basic spectral–luminescent properties of transparent oligomers and polymers were investigated. It is shown that they are characterized by the extinction coefficient of up to 9000–12000 and intensity of luminescence with the relative quantum yield of up to 10 % in the range of 360–365 nm. The resulting polymers may be used as the basis of highly transparent products, plastic scintillators and other materials of the optical-luminescent materials science.

Highlights

Nowadays polymeric materials are widely spread in almost all spheres of modern science and industry
The purpose of the study is the synthesis of optically transparent BF oligomers and polymers with luminescence properties and high operational characteristics
At the same time, such an important characteristic of scintillation plastics as bulk attenuation length (BAL) in the above-mentioned materials is at the level of PS and PMMA – 40–60 cm to 50–200 cm

Summary

Introduction

Nowadays polymeric materials are widely spread in almost all spheres of modern science and industry. One of the most important directions of the use of polymers and various compositions on their basis is to obtain transparent materials with luminescent properties These materials have found broad application both in everyday life and in hightech industries. They are used for producing light-sensitive showcases and signs, detectors of various types of energy, optical fiber parts of machines and mechanisms, and the like. The paper [4] deals with the development of highly transparent polyimide polymers with heat resistance over 200 °C and significant luminescence ability. The paper [5] describes the optical materials on the basis of polydimethylsiloxane, which are characterized by a high level of heat resistance and long-term stability of operational characteristics. In [12] it is noted that the filling of the channels and forms in the processing of thermosetting oligomers has considerable specificity and often does not allow obtaining optically transparent

The purpose and objectives of the study

Experimental data and discussion

Conclusions

Findings

Dmytrakh Teacher*