Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
F. CAKAR1, D. SAKAR1, O. CANKURTARAN1,* , F. KARAMAN1
The miscibility criteria of a copolyester of bisphenol-A with terephthalic and isophthalic acids (50/50) (PAr) and poly (2,6-di methyl-1,4-phenylene oxide) (PPO) was investigated at 30 oC in chloroform and 70 oC in dioxane dilute solutions by viscometric analysis. The intrinsic viscosity and viscometric parameters of this blend system were determined for several PAr/PPO mixtures in compositions such as 80/20, 60/40, 50/50, 40/60, 20/80 in chloroform and 75/25, 50/50 and 25/75 in dioxane solutions. The miscibility criteria on the basis of the sign of Δb , Δb′, Δ[η], α and β which are the difference between their experimental and ideal values were calculated by applying equations proposed by Krigbaum–Wall, Catsiff– Hewett, Garcia et al., Sun et al. and Jiang-Han. The data showed that the prepared blends were immiscible in the studied compositions at 30 and 70 oC. However, variation of the values of miscibility criteria indicates that the blend tends to be miscible by increasing temperature and PPO content in blend..
Polyarylate, Poly (2,6-dimethyl-1,4-phenylene oxide) , Miscibility, Viscometry.
F. CAKAR, D. SAKAR, O. CANKURTARAN, F. KARAMAN, Miscibility criteria of blends of poly(2,6-di methyl-1,4- phenylene oxide)/A copolyester of bisphenol-A with terephthalic and isophthalic acids by viscometric analysis, Optoelectronics and Advanced Materials - Rapid Communications, 3, 10, October 2009, pp.1106-1109 (2009).
Submitted at: June 23, 2009
Accepted at: Oct. 2, 2009
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.