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Interaction of diazoresins and sulfonate containing polyelectrolytes
Author(s) -
Chen Jinyu,
Luo Hao,
Cao Weixiao
Publication year - 2000
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(200004)49:4<382::aid-pi385>3.0.co;2-0
Subject(s) - polyelectrolyte , sulfonate , polymer chemistry , dissolution , chemistry , aqueous solution , salt (chemistry) , side chain , acrylate , copolymer , sodium , polymer , organic chemistry
The interaction of the photosensitive strong polycations diphenylamine‐4‐diazonium‐formaldehyde resin (DR) or 2‐nitro‐ N ‐methyl‐4‐diazonium‐formadehyde resin (NDR) with the sulfonate‐containing polyelectrolytes (SPE) poly(sodium vinylsulfonate) (PSV), poly(sodium‐ p ‐styrenesulfonate) (PSS), poly(potassium salt, 3‐sulfopropyl acrylate) (PPSA) or poly(potassium salt, 3‐sulfopropyl methacrylate) (PPSMA) has been studied. It was found that water‐insoluble DR‐based polyelectrolyte complex (i‐DR‐PEC) was formed at molar ratios (chain units) of polyanions to diazoresins of less than 1:1, but the added excessive polyanion would dissolve the i‐DR‐PEC to form water‐soluble DR‐based polyelectrolyte complex (s‐DR‐PEC). This dissolution process of PECs is related to the structure of their components: the polyanion with flexible longer side‐chain or the DR with stronger hydrophobic group exhibits high ability to dissolve the PEC. It is believed that the hydrophobic interaction between the excessive polyanion molecules and DR‐PEC chains plays a key role in the dissolution of i‐DR‐PEC. The influences of molecular weight of polyanion and concentration of NaCl on the dissolution of i‐DR‐PEC and the thermal stability of s‐DR‐PEC in excessive polyanion aqueous solution have also been investigated. © 2000 Society of Chemical Industry