Polyetheretherketone Polystyrene

Typical plastics, including polymethylmethacrylate (PMMA), polycarbonate (PC), cyclic olefin copolymer (COC), polysulfone (PSU), polyetheretherketone (PEEK), liquid crystal polymers (LCP), polystyrene(PS), polyethylene terephthalate (PET), etc., have been used for microfluidics. COC is the most commonly used polymer, accounting for around 80 % of all applications, because of its good optical properties [2]. 

Sidfonated hydrocarbon polymers are widely used as a host matrix to prepare organic-inorganic nanocomposite for high-temperature PEM applications due to their excellent stability and high susceptibility to electrophilic sulfonation reactions for acid fimctionalization. Sulfonation of thermally resistant polymers such as polysulfones (PSF), fluoropolymers, and polyetheretherketone (PEEK) was widely studied. The sulfonation of certain polymers such as polystyrenes... 

For some polymers such as isotactic polystyrene (iPS), polycarbonate, and PHB, reversing heat capacity from TMDSC equals baseline heat capacity for temperatures near glass transition. For other polymers also in isothermal TMDSC experiments latent heats may contribute to the measured reversing heat capacity at the generally low frequencies available by TMDSC. Figure 11 shows the development of measirred reversing heat capacity during isothermal crystallization of polyamide 12. Similar observations were made for PE, poly(c-caprolactone) (PCL), and polyetheretherketone (PEEK) to name a few. 

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