Fine structure of polymeric compositions based on latexes modified by water-soluble phthalocyanine

Relaxation phenomena in latex polymer materials modified by ionic phthalocyanine

“…The data of works [13,23] dealing with formation of a uniform film of latexes with a low polymer glass transition point are confirmed by our data on probe microscopy of the surface of the unmodified MA-BA polymer [13] characterized by high sample smooth ness and transparency. The film compactness is obvi ously related to mutual interparticle diffusion of hydrophilic acrylate macrochains.…”

“…The low glass transition point of the polymer in a latex parti cle "shell" can also cause interparticle interdiffusion of hydrophilic macroparticles. The latter is confirmed by the data on probe microscopy for such a film [13] point ing to its compactness and high smoothness of its surface. Surface roughness also cannot be determined.…”

“…The used latex polymer modifier is water soluble 2,3,9,10,16,17,23,24 octa[(3,5 biscarboxy) phenoxy] phthalocyanine С 88 Н 42 N 8 Na 8 O 24 [12][13][14]18]. Water solubility of phthalocyanine is achieved by addition to its structure of final ionic -COONa groups.…”

“…The objects to be studied are film forming sty rene-methacrylate latexes with a copolymer glass transition point (T gl ) of up to 25°С; their synthesis is described in detail in [12,13]. Films based on latex copolymers that are unmodi fied and modified by water soluble phthalocyanine were manufactured by pouring latexes onto a Teflon support with their further drying in air and then in vac uum to constant weight.…”

“…Earlier, we established the possibility of modifica tion of latex polymers based on emulsifier free film forming styrene alkyl(meth)acrylate latexes by water soluble 2,3,9,10,16,17,23,24 octa[(3,5 biscarboxy) phenoxy]phthalocyanine С 88 Н 42 N 8 Na 8 O 24 (WSP) owing to their full compatibility, as well as the stability of the latter in the presence of WSPs [12][13][14], which is a prerequisite for development of new composite materials with a set of practically important proper ties, particularly photochemical ones [5][6][7][8][9][10][11].…”