67360-24-1Relevant academic research and scientific papers
Synthesis of Two 2,2′-Bipyridine Containing Macrocycles for the Preparation of Interlocked Architectures
Whittaker, Jacob,Moorthy, Suresh,Cremers, Jonathan,Price, Jason R.,McMurtrie, John C.,Clegg, Jack K.
, p. 588 - 593 (2017)
The synthesis and characterisation of two 28-membered, 2,2′-bipyridine-containing macrocycles in high yield is reported. The first imine-containing macrocycle was formed via a Williamson ether synthesis and showed no evidence of higher oligomer formation.
New generation of photosensitive poly(azomethine)esters: Thermal behaviours, photocrosslinking and photoluminescence studies
Lim, Wan-Leng,Oo, Chuan-Wei,Choo, Yvonne-Shuen-Lann,Looi, Shueh-Teng
, p. 15 - 22 (2015/07/15)
Abstract Three new series of soluble photosensitive poly(azomethine)esters with even methylene spacers in their backbone and various substituents on their side chain were synthesized. Their molecular structures were elucidated with various spectroscopic methods. The different substituents and length of the methylene spacers were found to influence the thermal stability of the polymers. The -OCH3 substituted side chain poly(azomethine)esters showed highest thermal stability, followed by -Cl and -H. Meanwhile, poly(azomethine)esters with longer methylene spacers exhibited lower thermal stability. The photoreactivity of these poly(azomethine)esters revealed that the chalcone moiety dimerized and led to photocrosslinking. The rate of photocrosslinking increased with longer methylene spacers and in the order of -H 3. Photoluminescence intensity was found to be enhanced upon UV irradiation. This could be due to the arrangement of the phenyl rings in the position that promoted effective π-π stacking interaction and hence led to aggregation of the polymer chains which was confirmed via TEM analysis.
