Solid phase photopolymerization of pyrrole in poly(vinylchloride) matrix

Template free method for the synthesis of Ag–PPy core–shell nanospheres with inherent colloidal stability

“…3) was performed to study the effect of silver nitrate concentration on PPy, strong nitrate doping vibrations were observed at approximately 1385 cm −1 with the incorporation of silver nitrate in the reaction [18,45]. The characteristic bands present at approximately 770 and 880 cm −1 might be ascribed to the C H and C C out of plane deformations, while the band present at approximately 1090 cm −1 may correspond to C H in plane vibrations [23,[46][47][48][49]. The bands present at approximately 3400 cm −1 may be assigned to N H stretching in PPy [50].…”

3D printing of conjugated polymers

“…The authors describe the development of a divergent catalytic system originating from a single photoinitiator. Photopolymerization of pyrrole within films had been described in the literature but was never incorporated into an AM system . In their setup, a UV‐absorbing photoinitiator creates radical centers that promote polymerization of a diacrylate support structure, while also oxidizing silver ions that initiate the polymerization of pyrrole [Fig.…”

Principles of Uv Degradation

“…91 The permeability to oxygen of plasticized PVC films, having 23% dioctyl phthalate, is approximately 20 times higher than for rigid PVC (0.70 x 10 -10 cm 3 s -1 cm -1 Hg versus 0.03 x 10 -10 cm 3 s -1 cm -1 Hg for rigid PVC). 74,[95][96][97] The only essential information from these studies regards PVC/PPy and PVC/PANI blends which, when exposed to UV radiation, benefit from PVC degradation because evolved HCl dopes conductive polymers which render their conductivities to the blend. 87 Two instruments were compared in studies of plasticized PVC.…”

“…92 PVC, isolated from plasticizer after irradiation at 257 nm (not available in sun radiation), was found to contain phthalate fragments attached to the polymer. [96][97] 5.5.9 SOLVENTS Commercial processing of PVC does not require solvents and they are not knowingly used by quality concerned processors. A Weather-Ometer predicted outdoor performance, whereas degradation of samples under fluorescent lamp radiation (QUV) did not correlate with outdoor degradation.…”