Results 191 to 200 of about 31,941 (245)
[Application of poly ether ether ketone localization marker combined with mixed reality technology in vessel localization of anterolateral thigh perforator flap]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiXu Q +6 more
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Hydrogen storage by functionalised poly(ether ether ketone)
, 2010 Pedicini R +3 more
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Journal of Applied Polymer Science, 2011
AbstractNew poly(ether ether ketone)s and poly (ether ether ketone ketone)s were synthesized by polycondensation of each of the three bisphenols, viz., 4,4′‐(octahydro‐2(1H)‐naphthylidene)bisphenol, 4,4′‐(octahydro‐2(1H)‐naphthylidene)bis‐3‐methylphenol, and 4,4′‐(octahydro‐2(1H)‐naphthylidene)bis‐3,5‐dimethylphenol with 4,4′‐difluorobenzophenone and 1,
Sharad K Pasale +2 more
exaly +2 more sources
AbstractNew poly(ether ether ketone)s and poly (ether ether ketone ketone)s were synthesized by polycondensation of each of the three bisphenols, viz., 4,4′‐(octahydro‐2(1H)‐naphthylidene)bisphenol, 4,4′‐(octahydro‐2(1H)‐naphthylidene)bis‐3‐methylphenol, and 4,4′‐(octahydro‐2(1H)‐naphthylidene)bis‐3,5‐dimethylphenol with 4,4′‐difluorobenzophenone and 1,
Sharad K Pasale +2 more
exaly +2 more sources
Crystallization behaviour of poly(ether-ether-ketone)
Polymer, 1986Abstract A study has been made of the crystallization behaviour of poly(ether-ether-ketone), PEEK, under isothermal and non-isothermal conditions. A differential scanning calorimeter was used to monitor the energetics of the crystallization process from the melt and from the rubbery amorphous state.
Peggy Cebe
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Polymer, 1991
Abstract The unit cell of poly(ether ether ketone ketone) was determined to be orthorhombic, as in other poly(aryl ether ketones). Comparing different poly(aryl ether ketones) it was found that the crystallographic parameters depend on the ether to ketone ratio.
H.J Zimmermann, K Könnecke
exaly +2 more sources
Abstract The unit cell of poly(ether ether ketone ketone) was determined to be orthorhombic, as in other poly(aryl ether ketones). Comparing different poly(aryl ether ketones) it was found that the crystallographic parameters depend on the ether to ketone ratio.
H.J Zimmermann, K Könnecke
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Macromolecular Chemistry and Physics, 1996
AbstractThermal properties of poly(ether ether ketone ketone) (PEEKK)/poly(ether biphenyl ether ketone ketone) (PEDEKK) copolymers were investigated by means of differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The glass transition temperature (Tg) increases from 154°C to 183°C as the content of PEDEKK units increases.
Mitsuhiro Shibata +4 more
+5 more sources
AbstractThermal properties of poly(ether ether ketone ketone) (PEEKK)/poly(ether biphenyl ether ketone ketone) (PEDEKK) copolymers were investigated by means of differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The glass transition temperature (Tg) increases from 154°C to 183°C as the content of PEDEKK units increases.
Mitsuhiro Shibata +4 more
+5 more sources
Journal of Applied Polymer Science, 2010
AbstractA new monomer, N,N′‐bis(4‐phenoxybenzoyl)‐m‐phenylenediamine (BPPD), was prepared by condensation of m‐phenylenediamine with 4‐phenoxybenzoyl chloride in N,N‐dimethylacetamide (DMAc). A series of novel poly(ether amide ether ketone) (PEAEK)/poly(ether ketone ketone) (PEKK) copolymers were synthesized by the electrophilic Friedel‐Crafts solution
Bin Huang, Meihua Zhu, Mingzhong Cai
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AbstractA new monomer, N,N′‐bis(4‐phenoxybenzoyl)‐m‐phenylenediamine (BPPD), was prepared by condensation of m‐phenylenediamine with 4‐phenoxybenzoyl chloride in N,N‐dimethylacetamide (DMAc). A series of novel poly(ether amide ether ketone) (PEAEK)/poly(ether ketone ketone) (PEKK) copolymers were synthesized by the electrophilic Friedel‐Crafts solution
Bin Huang, Meihua Zhu, Mingzhong Cai
+4 more sources
Macromolecular Rapid Communications, 1996
AbstractStructures of poly(ether ether ketone ketone)‐poly(ether biphenyl ether ketone ketone) copolymers were studied by using small angle X‐ray scattering and the one‐dimensional electron density correlation function method. The results revealed that structures of the aggregated state of the copolymers depend closely on the biphenyl content (nb ...
Hongfang Zhang +4 more
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AbstractStructures of poly(ether ether ketone ketone)‐poly(ether biphenyl ether ketone ketone) copolymers were studied by using small angle X‐ray scattering and the one‐dimensional electron density correlation function method. The results revealed that structures of the aggregated state of the copolymers depend closely on the biphenyl content (nb ...
Hongfang Zhang +4 more
openaire +1 more source
Polymer International, 2010
AbstractPoly(aryl ether ketone)s (PAEKs) are a class of high‐performance engineering thermoplastics known for their excellent combination of chemical, physical and mechanical properties, and the synthesis of semicrystalline PAEKs with increased glass transition temperatures (Tg) is of much interest. In the work reported, a series of novel copolymers of
Jianwen Jiang +2 more
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AbstractPoly(aryl ether ketone)s (PAEKs) are a class of high‐performance engineering thermoplastics known for their excellent combination of chemical, physical and mechanical properties, and the synthesis of semicrystalline PAEKs with increased glass transition temperatures (Tg) is of much interest. In the work reported, a series of novel copolymers of
Jianwen Jiang +2 more
openaire +1 more source