Photoresponsive polymers having pendant chlorocinnamoyl moieties: synthesis, reactivity ratios and photochemical properties

Polyether nanoparticles from covalently crosslinked copolymer micelles

“…The decrease in absorbance intensity at 274 nm with an increasing duration of UV exposition is connected with the disappearance of double bonds of the cinnamoyl groups and the concurrent formation of cyclobutane rings by cycloaddition [65][66][67]. UV absorption spectra of the EO 113 -b-(Gl 13 -co-GlCA 20 ) copolymer samples at three irradiation times is encluded in supplementary material (Fig.…”

Polycinnamates and Block Co-polymers Prepared by Atom Transfer Radical Polymerization and Microwave Irradiation

“…[1,2]. Among them, of particular interest continue to be the polymers containing photo-cross-linkable cinnamate side-groups, frequently introduced via the chemical modification of some precursors, whose photochemistry, based mainly on the ability of chromophore to undergo trans-cis isomerization [3][4][5][6] and photodimerization upon UV irradiation [7][8][9], was widely exploited in the development of negative-working photoresists [10,11]. Moreover, further manipulation of the poly(vinylcinnamate) (PVCi) and its derivatives was essential for inducing various changes in the physical properties of thin polymeric films irradiated with linearly polarized light, more important for practical applicability (e.g., optical devices) being photoaligment regulation of the liquid crystals or photooptical control of the refractive index and birefringence in the film [7,[12][13][14].…”

Co-polymerization of 4-biphenyl methacrylate with methyl methacrylate: synthesis, characterization and determination of monomer reactivity ratios

“…Generally, poly(phenyl methacrylates) possesses high tensile strength, high thermal stability and their glass transition temperature is higher than their corresponding acrylate polymers due to the presence of α-methyl group on their main chain. Therefore, they find wide range of applications in the preparation of materials such as photoluminescent [11], photoresist [12], adhesives for leather [13 -15] and photosensitive materials [16]. Methyl methacrylate co-polymers are mainly used in the production of primers for automotive finishes, lacquers for polishing metals, enamels for household appliances, formulations of base and top coats for leather and binder in protective coatings because of their durability and transparency [17,18].…”