Knoop et al. studied the preparation of high-molecular-weight furan-based polyesters using a combination of melt polycondensation and solid-state polycondensation …
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1.3. Solid state polymerization of step-growth polymers (solid state polycondensation) 14 1.3.1. Monomer solid state polymerization (direct SSP) 16 1.3.2. Prepolymer solid state …
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Solid-state polymerization Mechanical recycling Thermal degradation Polycondensation abstract Poly(lactic acid) (PLA) is one of the most important alternatives to fossil-fuel based polymers …
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According to this model, there are two types of end groups, namely active end groups and inactive end groups, and the solid-state polycondensation reaction is a second-order reaction with respect ...
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The first stage is melt polycondensation and the second stage is solid state polycondensation. Depending on the precursors used, there are two melt polycondensation processes, namely …
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The second plant will use Uhde Inventa-Fischer's proprietary patented MTR® technology to produce 216,000 tons per year of resin for the production of PET bottles. Both …
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Thus, to produce recycled bottle-grade PET, solid-state polycondensation (SSP) is the main process used to decontaminate and increase the IV of recycled PET (Valentino, …
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A process for the solid state polycondensation of PET is proposed. It is shown that by correctly choosing the prepolymerisation conditions it is possible to crystallise the product and to directly ...
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The term solid state polycondensation simply says that chain growth by condensation steps occur under conditions, where at least one reaction partner exists in the solid state. As discussed below, SSP encompasses a …
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Duh [13] postulated that part of the functional end groups remains inactive during SSP and the solid-state polycondensation (transesterification) follows a second-order kinetics …
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Solid-state polycondensation (SSP) comprises a bulk polymerization technique industrially applied to step-growth polymers. It involves heating the starting material (crystalline …
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(Keywords: unsaturated nylon salts; solid-state polycondensation (polyamidation); solid-melt transition; water accumulation) INTRODUCTION Solid-state polyamidation (SSP) is …
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Moreover, this team also suggested that a starting mixture of l-PLA and d-PLA in 1:1 ratio in solid state polycondensation could improve the polymer melting point from 160–170 °C to over 200 °C, indicating reinforced thermal …
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Solid-state polycondensation and decontamination reactors supplied by Starlinger viscotec complement Starlinger's PET recycling technology and guarantee highest pureness and optimum viscosity in the recycled PET …
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Fundamental aspects of the reactions are treated, and it is shown that the rate of polycondensation in the solid state depends on the relative rates of two types of diffusion. On …
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Based on its expansion regarding condensation polymers, the current book focuses on solid state polycondensation; meanwhile, main issues of solid state polyaddition are presented briefly in …
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Four synthesis methods, direct polycondensation (DP), azeotropic polycondensation (AP), solid state polymerization (SSP) and ring-opening polymerization (ROP), will be mainly discussed to present the improved …
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Solid State Polymerization - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Solid state polymerization (SSP) is a technique used to increase the molecular weight of polyesters and polyamides produced via …
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In most cases, the super-clean processes are based on solid-state polycondensation (SSP) processes. Within these processes the PET pellets are heated up to temperatures of about …
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Solid State Polymerization of Step-Growth Polymers (Solid State Polycondensation) Solid State Polymerization Apparatus and Assemblies. Solid State …
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Poly(lactic acid) (PLA) was submitted to solid state polymerization (SSP) in a fixed bed reactor under nitrogen flow, so as to examine technique efficiency for increasing the …
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The solid state polycondensation in the viscoSTAR 180 SSP reactor at the end of the recycling process is decisive for decontamination. It restores the mechanical characteristics of the recycled PET and increases the intrinsic …
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recyclates. In most cases, the super-clean processes are based on solid-state polycondensation (SSP) processes. Within these processes the PET pellets are heated up to temperatures of …
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The quality of PET recyclate manufactured using Coperion recycling technology and decontaminated in an SSP (Solid State Polycondensation) reactor is so high that it is approved by the U.S. Food and Drug Administration (FDA) for direct …
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Thermal treatments could also be used to increase the molecular weight of PLA. This process is called solid state polymerization (SSP). Vouyiouka et al. reported increases of up to 67% after …
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Solid-state polycondensation process of recycled polyethylene-terephthalate and its effect on crystalline structure and mechanical properties were investigated. A three-phase …
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24.2.1.2.8 Solid-State polymerization. Solid-state polymerization is a method in which the starting material is heated until the end groups mobilize enough to react in the absence of oxygen and …
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Solid-state polycondensation (SSP) is a competitive method of semicrystalline polymers synthesis to conventional melt polycondensation process.
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Starlinger's PET bottle-to-bottle recycling process builds on more than 15 years of solid know-how in this field and has been approved for food-contact applications by a number of multinational brand owners as well as …
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Summary — Solid-state polycondensation (SSP) is a competitive method of semicrystalline poly-mers synthesis to conventional melt polycondensation process. The molecular weight of …
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