The structure and properties of poly(acrylamide acrylic acid)[P(AM AA)]/poly (acrylamide dimethyldiallyammonium chloride)[P(AM DMDAAC)] complex solution formed through Coulomb force were studied by means of dynamic light scattering,viscosity and transmittance measurements.The results show that conformation and hydrodynamic radius of the complex in solution are mainly affected by such factors as composition of the complex solution,polymer concentration,and NaCl content.Proper interaction between P(AM ...