scholarly journals Excellent performance of aromatic polyguanamines induced by multiple hydrogen bondable tetraazacalix[2]arene[2]-triazine ring in their main chain

RSC Advances ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 1361-1370 ◽  
Author(s):  
H. Sasaki ◽  
T. Kotaki ◽  
A. Fujimori ◽  
T. Tsukamoto ◽  
E. Suzuki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hydrogen Bond ◽  
Main Chain ◽  
Thermal And Mechanical Properties ◽  
Triazine Ring ◽  
Excellent Performance ◽  
Polymer Main Chain ◽  
Multiple Hydrogen Bond

Poly(guanamine)s containing tetraazacalix[2]arene[2]triazine ring within the polymer main-chain show outstanding thermal and mechanical properties arisen from the multiple-hydrogen bond.

Copolymers based on telechelic benzoxazine with a reactive main-chain and anhydride: monomer and polymer synthesis, and thermal and mechanical properties of carbon fiber composites

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 16785-16791 ◽  
Author(s):  
Jia Liu ◽  
Chris Scott ◽  
Scott Winroth ◽  
Joao Maia ◽  
Hatsuo Ishida
Keyword(s):  
Mechanical Properties ◽  
Free Radical ◽  
Carbon Fiber ◽  
Maleic Anhydride ◽  
Main Chain ◽  
Fiber Composites ◽  
Thermomechanical Properties ◽  
Carbon Fiber Composites ◽  
Thermal And Mechanical Properties ◽  
Free Radical Initiator

Enhanced thermomechanical properties of polybenzoxazine based on allylamine-terminated oligomeric benzoxazine (Allyl-oligomer) are obtained by copolymerizing the oligomer with maleic anhydride (MA) in the presence of a free radical initiator.

High performance crosslinked polyimide based on main-chain type polybenzoxazine

RSC Advances ◽  
2014 ◽  
Vol 4 (107) ◽  
pp. 62550-62556 ◽  
Author(s):  
Kan Zhang ◽  
Jia Liu ◽  
Hatsuo Ishida
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Main Chain ◽  
Thermal And Mechanical Properties ◽  
Novel Approach ◽  
Chain Type ◽  
Thermosetting Polyimides

A novel approach has been developed to prepare thermosetting polyimides by incorporating benzoxazine structure as a repeating unit in the main chain. This method allows the crosslinked polyimide with excellent thermal and mechanical properties.

scholarly journals Heteroaromatic Polyamides with Improved Thermal and Mechanical Properties

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1793
Author(s):  
Miriam Trigo-López ◽  
Ana M. Sanjuán ◽  
Aranzazu Mendía ◽  
Asunción Muñoz ◽  
Félix C. García ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Optical Properties ◽  
Thermal Performance ◽  
High Performance ◽  
Main Chain ◽  
Thermal And Mechanical Properties ◽  
Aramid Fibers ◽  
Aromatic Diamines ◽  
Aromatic Polyamides ◽  
Isophthaloyl Chloride

We prepared high-performance aromatic copolyamides, containing bithiazole and thiazolo-thiazole groups in their main chain, from aromatic diamines and isophthaloyl chloride, to further improve the prominent thermal behavior and exceptional mechanical properties of commercial aramid fibers. The introduction of these groups leads to aramids with improved strength and moduli compared to commercial meta-oriented aromatic polyamides, together with an increase of their thermal performance. Moreover, their solubility, water uptake, and optical properties were evaluated in this work.

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