Results 301 to 310 of about 106,728 (339)
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Miscibility of polyamide-6,6 with aromatic polyamides
Polymer Bulletin, 1996The polyamides with aromatic rings in the main chain were synthesized by the solution polymerization of 4,4′-diphenylmethane diisocyanate and aliphatic dicarboxylic acid in the presence of catalyst. The thermal properties and the miscibility behaviours with polyamide-6,6 of these aromatic polyamides were studied.
Jung Ho Kim +3 more
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Polymer Degradation and Stability, 1998
Abstract Naturally occurring homopolyamides are linear poly(amino acids) consisting either of glutamic acid (poly[γ glutamic acid], γ-PGA), lysine (poly[ɛ lysine]) or arginylaspartic acid (poly[α arginylaspartic acid], cyanophycin). γ-PGA is synthesized as the major component of capsules and slimes of several Gram-positive bacteria.
S. Pickartz +2 more
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Abstract Naturally occurring homopolyamides are linear poly(amino acids) consisting either of glutamic acid (poly[γ glutamic acid], γ-PGA), lysine (poly[ɛ lysine]) or arginylaspartic acid (poly[α arginylaspartic acid], cyanophycin). γ-PGA is synthesized as the major component of capsules and slimes of several Gram-positive bacteria.
S. Pickartz +2 more
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Blends of biorenewable polyamide-11 and polyamide-6,10
Polymer, 2013Biorenewable polyamide-11 (PA11) is blended with partially biorenewable polyamide-6,10 (PA610) to produce thermoplastics of varying renewable carbon content. DSC thermograms show melting point depression for the PA610 crystals with increasing PA11 composition thus indicating that the two polyamides are fully miscible in the melt; the blends exhibit ...
Ruehle, David A. +6 more
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ATZ - Automobiltechnische Zeitschrift, 2013
Neu entwickelte Polyamid-Materialien sind seit einigen Jahren in verschiedenen Bauteilen von Tanksystemen im Einsatz. Die Verwendung von beispielsweise Polyamid 6 fuer Kunststofftanks kann jedoch unter gewissen Umstaenden zu unerwuenschten Nebeneffekten wie zum Beispiel Schadensfaellen mit verstopften Einspritzduesen und Treibstoffleitungen sowie ...
Gabriele C. Eder, Boril Stefanov Chernev
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Neu entwickelte Polyamid-Materialien sind seit einigen Jahren in verschiedenen Bauteilen von Tanksystemen im Einsatz. Die Verwendung von beispielsweise Polyamid 6 fuer Kunststofftanks kann jedoch unter gewissen Umstaenden zu unerwuenschten Nebeneffekten wie zum Beispiel Schadensfaellen mit verstopften Einspritzduesen und Treibstoffleitungen sowie ...
Gabriele C. Eder, Boril Stefanov Chernev
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2008
Part 1 Polyester and polyamide fundamentals: Polyester resins Polyamide fibres Manufacture of polyester fibres Manufacture of polyamide fibres Poly (lactic acid) fibres (PLA) Environmental impact of polyester and polyamide textiles. Part 2 Improving functionality of polyesters and polyamides: Specialty fibres from polyester and polyamides Property ...
Bhuvanesh Gupta +3 more
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Part 1 Polyester and polyamide fundamentals: Polyester resins Polyamide fibres Manufacture of polyester fibres Manufacture of polyamide fibres Poly (lactic acid) fibres (PLA) Environmental impact of polyester and polyamide textiles. Part 2 Improving functionality of polyesters and polyamides: Specialty fibres from polyester and polyamides Property ...
Bhuvanesh Gupta +3 more
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Dielectric studies of hyperbranched aromatic polyamide and polyamide‐6,6 blends
Journal of Applied Polymer Science, 2005AbstractThe objective of this work was to study the interactions between polyamide‐6,6 (PA‐6,6) and hyperbranched (HB) polyamide with different functional end groups. The investigation focused on the thermal, dielectric, and viscoelastic properties of two kinds of HB polyamides, with amine and alkyl end groups, prepared by a one‐pot process, in a ...
Hakme, C. +7 more
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1998
This chapter illustrates some examples of the structural and dynamic analyses performed for polyamides such as nylon 4, 6, 7, 11, and 66, including the oriented fibers of aromatic polyamides, poly( m- phenylene isophthalamide) (PMIA) and poly(4-methyl- m -phenylene terephthalamide) (P4-MPTA).
Tetsuo Asakura, Isao Ando
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This chapter illustrates some examples of the structural and dynamic analyses performed for polyamides such as nylon 4, 6, 7, 11, and 66, including the oriented fibers of aromatic polyamides, poly( m- phenylene isophthalamide) (PMIA) and poly(4-methyl- m -phenylene terephthalamide) (P4-MPTA).
Tetsuo Asakura, Isao Ando
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Israel Journal of Chemistry, 1974
AbstractThe sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO3 in CCl4. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids ...
Albert Zilkha, Jacob Vaya
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AbstractThe sulfonation of polyamides (Nylons‐3,6,11 and 6,6) was investigated using fuming sulfuric acid and solutions of SO3 in CCl4. The sulfonated polymers were soluble in water and insoluble in ethanol. Acid hydrolysis of the polymers and quantitative determination of the amino acids in the hydrolysate showed the presence of α‐sulfo amino acids ...
Albert Zilkha, Jacob Vaya
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Biorenewable blends of polyamide‐4,10 and polyamide‐6,10
Journal of Applied Polymer Science, 2016ABSTRACTBiobased polymers hold the promise of greatly improved sustainability metrics. In this study, semicrystalline polymer blends are formulated between two partially biorenewable polyamides. Polyamide 4,10 (PA410) is melt mixed with polyamide‐6,10 (PA610).
Christopher S. Moran +4 more
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