29446-20-6Relevant academic research and scientific papers
Synthesis of strained macrocyclic biaryls for enthalpy-driven ring-opening polymerization
Colquhoun, Howard M.,Zhu, Zhixue,Dudman, Christopher C.,O'Mahoney, Caroline A.,Williams, David J.,Drew, Michael G.B.
, p. 10413 - 10420 (2005)
Polymerizable macrocyclic biarylene-ether-ketones and biarylene-ether- sulfones are accessible from linear, bis(chloro)-terminated oligomers via nickel-catalyzed, intramolecular coupling under pseudo-high-dilution conditions. Single-crystal X-ray analyses
Addition products of di-acetylene-terminated polyimide derivatives and an dienophile having ethylene groups
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, (2008/06/13)
Novel, unsaturated diacteylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivaties of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --C C--C C--, hereinafter sometimes referred to as conjugated diynes . These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.
Addition products of diacetylene-terminated polyimide derivatives and a dienophile having a terminal vinyl group
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, (2008/06/13)
Novel, unsaturated diacetylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --C C--C C--, hereinafter sometimes referred to as conjugated diynes . These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.
Addition products of di-acetylene-terminated polymide derivatives and dienophiles having terminal maleimide grops
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, (2008/06/13)
Novel, unsaturated diacetylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --C C--C C--, hereinafter sometimes referred to as conjugated diynes . These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.
