Polycarbonate, glassy

Gusev A A and Suter U W 1995 Relationship between helium transport and molecular motions in a glassy polycarbonate Macromolecules 28 2582- 4... 

Source From Table of units, J. Membr. Set, 2, 237, 2004 Stern S.A., Shah V.M., Hardy B.J., J. Polym. Sci. PartB Polym. Phys., 25, 1263, 1987 Koros W.J., Chan A.H., Paul D.R., J. Membr. Sci., 2, 165, 1977 Jordan S.M., The effects of carbon dioxide exposure on permeability behaviour of silicone rubber and glassy polycarbonates. PhD dissertation. University of Texas at Austin, Austin, TX, 1988. 

Jordan SM. The effects of carbon dioxide exposure on permeability behaviour of silicone mbber and glassy polycarbonates. PhD dissertation, Austin, TX University of Texas at Austin, 1988. 

Jones, A.A. Molecular level model for motion and relaxation in glassy polycarbonate. Macromolecules 1985, 18 (5), 902-906. 

Hutnik, M., Argon, A.S., Suter, U.W. Quasi-static modeling of chain dynamics in the amorphous glassy polycarbonate of 4, 4, -isopropyiilldcncdlphcnol, Macromolecules 24(22), 5970 (1991)... 

In contrast to biological systems, the accuracy of the measured distance is less stringent for synthetic polymers, because they do not form high quality crystals and it is not easy to perform specifically isotope label. Local packing in a glassy polycarbonate has been examined in a homogeneous mixture of 5% [Carbonyl- C]polycarbonate and 95% [methyl-d6]polycarbonate using REDOR NMR. The distance from the carbonyl carbon of one... 

Figure 3.1 7 Radial distribution function for glassy polycarbonate (from Frischat, G The Physics of Non-Crystalline Solids, Trans Tech Publ., Switzerland, 1977).

Arrese-Igor, S., Mitxelena, O., Arbe, A., Alegria, A., Cohnenero, J., and Frick, B., Molecular motions in glassy polycarbonate below its glass transition temperature, J. Non-Cryst. Solids, 352, 5072-5075 (2006). 

Figure 8. Stress-strain data and theoretical prediction (solid lines) for glassy polycarbonate at ambient temperature. (Adapted from ref. 84.)...

The Physics of Glassy Polycarbonate Superposability and Volume Recovery... 

G. Dlubek, A. P. Clarke, H. M. FretweU, S. B. Dugdale, M. A. Alam, Positron lifetime studies of free volume hole size distribution in glassy polycarbonate and polystyrene, Phys. Stat. Sol. A, 157, 351 (1996). 

Fig. 55. Torque and normal force responses for a glassy polycarbonate material in stress relaxation conditions. Isochrones. T 1 s O 10 s 100 s V 1000 s. After Pesce and McKenna (146).

Figure 58 shows the isochronal VL function behavior for the polycarbonate as a function of the stretch X. Clearly, the behavior is very different for the material below the glass transition, that is the solid-like or glassy polycarbonate, than it is for the rubbery material in Figure 32. 

Fig. 57. Values of the time and strain-dependent strain energy function derivatives Wi = 9W/9/1 and W2 = 9W/9/2 for a glassy polycarbonate determined from torque and normal force measurements in single-step stress relaxation torsional experiments, (a) >/ 0.017 0.033 A 0.050 v 0.067 0.083 O 0.10. (b) y A 0.017 0.033 o 0.050 T 0.067 v 0.083 0.10. After Pesce and McKenna (146).

J.-J. Pesce and G. B. McKenna, Prediction of the Sub-Yield Extension and Compression Responses of Glassy Polycarbonate from Torsional Measurements J. Rheol. 41, 929-942(1997). 

In stress relaxation of glassy polycarbonate at tensile strains up to 4%, Yannas and Haskell found that the time-dependent tensile stress ot could be expressed by a power series ... 

Nonlinear oscillatory viscoelastic behavior of glassy polycarbonate and polymethyl methacrylate has been investigated in a thorough study by Davis and Ma-cosko with very nearly homogeneous shear strains up to 4%. The analog of equation 8, derived in the same manner from the extension of the Boltzmann su-... 

Hence, the presented above results have shown that elasticity modulus of amorphous glassy polycarbonate, considered as natural nanocomposite, are defined completely by its suprasegmental structure state. This state can be described quantitatively within the frameworks of the cluster model of polymers amorphous state structure and characterized by local order level. Natural nanocomposites reinforcement degree can essentially exceed analogous parameter for artificial nanocomposites [56]. 

Crook, R.A. (1993) Damage and the nonlinear viscoelastic response of glassy polycarbonate and LaRC-TPI. Polym. Eng. Sci., 33, 56. 

Boyanova M, Balta Calleja F J, Fakirov S, Kuehnert I and Mennig G (2005) Influence of processing conditions on the weld line in doubly injection-molded glassy polycarbonate and polystyrene Microindentation hardness study, Adv Polym Techn 24 14-20. 

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