Stimuli-responsive conjugated polymers. Synthesis and chiroptical properties of polyacetylene carrying l-glutamic acid and azobenzene in the side chain

Synthesis of novel helical poly(N-propargylamides) containing azobenzene pendant groups and effects of substitution groups on azobenzene on the stability of helix

“…4(C)) of Poly(V 3 ) barely changed with the temperature rise. The helical stability of Poly(V 3 ) was better than that of the reported poly(N-propargylamides) carrying azobenzene moieties at 50°C in THF [6,31]. All of them did not contain substituents on the azobenzene.…”

“…Many polymers bearing azobenzene chromophores have been explored extensively because of the unique optical properties [25][26][27][28][29]. Recently, some helical poly(N-propargylamides) containing azobenzene moieties have been synthesized, and the reversible transformation of higher order structures triggered by azobenzene isomerization were studied [6,[30][31][32]. Sanda and coworkers synthesized the helical poly(N-propargylamides) bearing designed azobenzene moieties.…”

The transformation of chiral signals into macroscopic properties of materials using chirality-responsive polymers

“…Similar photo-mediated chiral polymers have been reported by several other groups. 38,39 In these studies, rapid and reversible photoand thermo-isomerization reactions of azobenzene moieties provided a versatile photo-switchable system and further induced conformational transitions of the polymer backbone. Related studies have been summarized in a review by Choi et al 40 in 2007.…”

SEC/DAD and1H NMR Study of Molecular Weight and Configurational Stability of Poly(2,4-difluorophenylacetylene) and Polyphenylacetylene Prepared with Rh Catalyst

“…Large spectrum of potential applications of these polymers have been shown from the field of electronics, photonics, nonlinear optics and sensor constructions to gas separation and storage. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Substituted acetylenes represent important starting materials for the preparation of several groups of these polymers: poly(aryleneethynylene)s, poly(arylenebutadiynylene)s, polycyclotrimers and substituted polyacetylenes. [12] The last mentioned group, substituted polyacetylenes, is probably the largest group of pconjugated polymers as the diversity of chemical composition and structure are concerned.…”