Relationship between segmental anisotropy in polarizability and stationary ultrasonically induced birefringence in polymer solutions

Abstract Stationary ultrasonically induced birefringence in various polymer solutions was measured in order to investigate its relation to the anisotropy in polarizability of a polymer chain. From the concentration dependence of stationary ultrasonically induced birefringence in polystyrene–toluene, polycarbonate–chloroform and polybutadiene–toluene solutions, the intrinsic values of the birefringence were obtained. A linear relationship between the intrinsic value of the birefringence per segment and the segmental anisotropy in polarizability was obtained. In aqueous solutions of polyelectrolytes, sodium polystyrenesulfonate and tetramethylammonium polystyrenesulfonate, the birefringence decreased with ionic strength by the addition of the salts. The stationary birefringence per ultrasonic intensity for all polymer solutions investigated here decreased with increasing frequency.

[1]  J. Champion,et al.  Electro-optic Kerr birefringence of polystyrenes in dilute solutions , 1976 .

[2]  Daniel Kivelson,et al.  Experimental studies of acoustically induced birefringence , 1980 .

[3]  Keiji Yasuda,et al.  Frequency Dependence of Ultrasonically Induced Birefringence of Rodlike Particles , 1996 .

[4]  Kivelson,et al.  Nonlinear ultrasonically induced birefringence in gold sols: Frequency-dependent diffusion. , 1986, Physical review. A, General physics.

[5]  S. Rice,et al.  ON THE IONIZATION OF POLYSTYRENE SULFONIC ACID , 1961 .

[6]  M. Nagasawa,et al.  A Study of the Ionization of Polystyrene Sulfonic Acid by Proton Magnetic Resonance1a , 1961 .

[7]  Tadashi Inoue,et al.  Dynamic Birefringence of Vinyl Polymers , 1996 .

[8]  A. Takahashi,et al.  The Second Virial Coefficient of Polyelectrolytes , 1967 .

[9]  H. G. Jerrard.  Birefringence induced in liquids and solutions by ultrasonic waves , 1964 .

[10]  R. Larson.  The Structure and Rheology of Complex Fluids , 1998 .

[11]  Hiroyasu Nomura,et al.  Effect of chain structure and molecular weight on ultrasonically induced birefringence in polymer solutions , 2003 .

[12]  R. Larson.  Constitutive equations for polymer melts and solutions , 1988 .

[13]  Tadashi Inoue,et al.  Role of Polymer Chain Flexibility on the Viscoelasticity of Amorphous Polymers around the Glass Transition Zone , 1996 .

[14]  J. Champion,et al.  Conformation of polycarbonate by flow and magnetic birefringence , 1974 .

[15]  S. Koda,et al.  Linear and Nonlinear Ultrasonically Induced Birefringence in Polymer Solutions , 2000 .

[16]  M. Bader,et al.  Measurement of the birefringence induced in liquids by ultrasonic waves : application to the study of the isotropic phase of PAA near the transition point , 1981 .

[17]  Keiji Yasuda,et al.  On the frequency dependence of ultrasonically induced birefringence in isotropic phase of liquid crystal: 5CB (p-n-pentyl p'-cyanobiphenyl) , 1999 .

[18]  S. Koda,et al.  Translational-orientational coupling motion of molecules in liquids and solutions , 2002 .

[19]  B. D. Cook,et al.  Unified Approach to Ultrasonic Light Diffraction , 1967, IEEE Transactions on Sonics and Ultrasonics.

[20]  M. Bader,et al.  Birefringence Induced by Ultrasonic Waves in the Isotropic Phase of PCB , 1981 .

[21]  Hiroyasu Nomura,et al.  Study on Orientational Motion of Liquid Crystals by Acoustically Induced Birefringence : Physical Acoustics , 1992 .