Topic
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.
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TL;DR: In this article, the linear and non-linear viscoelastic properties of a series of non-compatible polymer blends (polystyrene-bisphenol A polycarbonate) have been studied in the temperature range 180-250°.
53 citations
TL;DR: The studies represent a detailed structural characterization of a polymer containing small amounts of mechanical linkages in its backbone and demonstrate that significant effects can be induced by doping conventional polymers with small percentages (2-6% of repeat units) of flexible catenanes.
Abstract: The synthesis, by solid-state copolymerization, and characterization of the first polycatenanes based on a commercial polymer are reported. Various amounts of a benzylic amide [2]catenane, the corresponding macrocycle, and a rigid bisphenol fluorene derivative have been quantitatively and homogeneously incorporated into bisphenol A polycarbonate. The resulting copolymers were characterized by size exclusion chromatography coupled with viscosimetry, (1)H NMR, differential scanning calorimetry, and dynamic mechanical analysis. The unexpectedly small influence of [2]catenane incorporation on the glass transition temperature of the copolymers points to remarkable internal mobility of the catenane comonomer rings. A new relaxation linked to the flexible catenane units is also observed. The studies represent a detailed structural characterization of a polymer containing small amounts of mechanical linkages in its backbone and demonstrate that significant effects can be induced by doping conventional polymers with small percentages (2-6% of repeat units) of flexible catenanes.
53 citations
TL;DR: In this article, a 50 50 polycarbonate (PC)-poly(butylene terephthalate) blend with added transesterification catalyst was studied using differential scanning calorimetry (d.s.c.).
53 citations
TL;DR: In this article, the in situ polymerization of isosorbide (ISB) predispersed with cellulose nanocrystals (CNCs), which directly produces polycarbonate (PC) nanocomposites, is proposed.
53 citations
Patent•
22 Aug 2000TL;DR: In this paper, the graft polymer is produced using mass, mass-solution or mass-suspension polymerisation methods and it has excellent flame resistance and very good processing properties such as improved flow behaviour, an improved elastic modulus and reduced deposit build-up on tools.
Abstract: The invention relates to polycarbonate ABS moulding materials which are provided with phosphanatamine and which have an excellent flame resistance and very good processing properties such as improved flow behaviour, an improved elastic modulus and reduced deposit build-up on tools. The graft polymer is produced using mass, mass-solution or mass-suspension polymerisation methods.
53 citations