Viscosity of homogeneous polymer blends: An altered free-volume state model

1988 ◽  
Vol 28 (1) ◽  
pp. 20-31 ◽  
Author(s):  
R. Sood ◽  
M. G. Kulkarni ◽  
A. Dutta ◽  
R. A. Mashelkar
Keyword(s):  
Polymer Blends ◽  
Free Volume ◽  
State Model ◽  
Volume State

A Positron-Annihilation-Lifetime study of Polymer Blends

1993 ◽  
Vol 321 ◽  
Author(s):  
J. Liu ◽  
Y. C. Jean ◽  
H. Yang
Keyword(s):  
Bisphenol A ◽  
Polymer Blends ◽  
Positron Annihilation ◽  
Free Volume ◽  
Weight Fraction ◽  
Bisphenol A Polycarbonate ◽  
Positron Annihilation Lifetime ◽  
Miscible Blend ◽  
Immiscible Blend ◽  
Free Volume Hole

ABSTRACTPositron-annihilation-lifetime (PAL) spectroscopy has been utilized to investigate the free-volume properties of two types of polymer blends, a miscible blend of bisphenol-A polycarbonate (PC) and tetramethyl bisphenol-A polycarbonate (TMPC), and an immiscible blend of PC and polystyrene (PS). In the miscible blend, the free-volume hole size and its fraction follow a linear relationship with respect to the weight fraction while in the immiscible blend, the relationship is not linearly additive. The free-volume hole distributions in the immiscible blend are found to be significantly broader than those in the pure polymers. The difference is thought to be a result of the free volume formed and associated with the conformation and interchain packing between the dissimilar chains in incompatible polymers.

Interfacial stabilization of binary polymer blends through radiation treatment: A free volume approach

2009 ◽  
Vol 6 (11) ◽  
pp. 2404-2406 ◽  
Author(s):  
J. M. Raj ◽  
G. N. Kumaraswamy ◽  
C. Ranganathaiah
Keyword(s):  
Polymer Blends ◽  
Free Volume ◽  
Radiation Treatment ◽  
Binary Polymer
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