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Polycarbonate

About: Polycarbonate is a research topic. Over the lifetime, 14032 publications have been published within this topic receiving 141740 citations. The topic is also known as: PC & Polycarbonate, PC.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the Flory-Huggins interaction parameter of bisphenol-A polycarbonate (PC) and poly(ethylene terephthalate) (PET) was investigated by differential scanning calorimetry and scanning electron microscopy.
Abstract: Blends of bisphenol-A polyarbonate (PC) and poly(ethylene terephthalate) (PET) has been investigated by differential scanning calorimetry and scanning electron microscopy. Blends were prepared by screw extrusion and solution casting with weight fractions of PC in the blends varying from 0.90 to 0.10. From the measured glass transition temperature (Tg) and apparent weight fractions of PC and PET dissolved in each phase, it appears that PET dissolves more in the PC-rich phase than does the PC in the PET-rich phase. The composition-dependent values of the Flory–Huggins polymer–polymer–interaction parameter were determined and found to be from 0.054 to 0.037 for extruded blends at 275°C and from 0.058 to 0.040 for solution casting at 25°C. The interaction parameter decreases with increasing PET concentration. This result is consistent with the values of the Tgs, the microscopy study, and the measured extrudate swell ratios which show that compatibility increases more in the PET-rich compositions than in the PC-rich compositions. The PC–PET blends are not microscopically miscible for all the blend compositions.

51 citations

Journal ArticleDOI
TL;DR: In this article, a comparison between the thermal behavior of poly-[2,2-propane-bis-(4-phenyl carbonate)] and the model compound diphenyl carbonates is drawn.
Abstract: A comparison is drawn between the thermal behaviour of poly-[2,2-propane-bis-(4-phenyl carbonate)] and the model compound diphenyl carbonate. On this basis a rearrangement mechanism is suggested to account for the main chemical and physical features of the degradation of the polymer between 300 and 389°.

51 citations

Journal ArticleDOI
C. Seidel1, H. Kopf1, Bernd Gotsmann1, T Vieth1, Harald Fuchs1, Karsten Reihs2 
TL;DR: In this article, mass spectroscopy, photoelectron spectrography, and scanning force microscopy (SFM) were used to analyze bisphenol A carbonate and polycarbonate.

51 citations

Journal ArticleDOI
TL;DR: In this article, a procedure to map atomistically detailed polymer models onto abstract polymer models like, for instance, the bond fluctuation model is discussed and an application to conformational and dynamic properties of two bisphenol polycarbonates in the melt is presented.
Abstract: A procedure to map atomistically detailed polymer models onto abstract polymer models like, for instance, the bond fluctuation model is discussed. This mapping is done on length and time scales mesoscopic to both models and incorporates static as well as kinetic information. The purpose of the procedure is to transfer information about a specific polymeric species into a simpler abstract model whose large scale and long time properties one can study in a computer simulation. The method is described and an application to conformational and dynamic properties of two bisphenol polycarbonates in the melt is presented

51 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023248
2022471
2021184
2020294
2019390
2018403