Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Fuyan He"'
Publikováno v:
Applied Sciences, Vol 9, Iss 3, p 578 (2019)
Six kinds of chiral polyamide-imides (PAI3a⁻3f) have successfully been synthesized via direct polycondensation. The thermal properties of the materials were evaluated by the gravimetric analysis (TGA) and differential scanning calorimetry (DSC). A
Externí odkaz:
https://doaj.org/article/f9d1c0cd71a147098735f3514d3b5638
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 5, Pp o1380-o1380 (2012)
The title compound, C23H19BrO2, was synthesized from 13-bromo-4-hydroxy[2.2]paracyclophane and benzoyl chloride. The hydroxy and carbonyl groups are involved in intramolecular O—H...O hydrogen bonding. The crystal packing exhibits weak C—H...O in
Externí odkaz:
https://doaj.org/article/a727f6afeb7444b78c9f5a09d3328587
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 4, Pp o950-o950 (2011)
The title compound, C36H36Br2O3, was synthesized from (Rp)-4-bromo-12-hydroxy[2.2]paracyclophane and oxydiethane-2,1-diyl bis(4-methylbenzenesulfonate). The crystal packing exhibits a short O...Br interaction [Br...O = 3.185 (3) Å] and a weak interm
Externí odkaz:
https://doaj.org/article/26958e1a1c984db48f41dd3efe30184e
Autor:
Wensheng Duan, Zhongwei Li, Zhizhou Yang, Fuyan He, Shisen Chen, Congde Qiao, Jinshui Yao, Changbin Zhang, Hui Zhao, Mei Li, Guihua Yang
Publikováno v:
Polymer Chemistry. 14:172-182
Novel guanidinophosphazene superbase (HTGCP) was successfully prepared only in one step. The facile preparation of polysiloxane with high conversion and precisely controllable Mn using superbase at room temperature in a short time.
Publikováno v:
Polymers
Volume 12
Issue 9
Polymers, Vol 12, Iss 2164, p 2164 (2020)
Volume 12
Issue 9
Polymers, Vol 12, Iss 2164, p 2164 (2020)
As natural polymer materials, proteins are readily biodegradable, interestingly, the synthetic polyamides (PAs) that are based on the same amide bonds (also called peptide bonds in proteins) are barely degradable. Whether did the chirality and config
The Thermal Properties and Degradability of Chiral Polyester-Imides Based on Several l/d-Amino Acids
Publikováno v:
Polymers
Volume 12
Issue 9
Polymers, Vol 12, Iss 2053, p 2053 (2020)
Volume 12
Issue 9
Polymers, Vol 12, Iss 2053, p 2053 (2020)
Eight kinds of chiral diacid monomers were prepared with amino acids with different side groups or configurations. Polyester-imides (PEIs) were synthesized from these diacid monomers and diphenol monomers through polycondensation reaction, and the pe
Publikováno v:
Polymer Degradation and Stability. 147:267-273
A series of chiral optically active monomers were prepared from l -amino acids with different structures. These monomers were polymerized to chiral polyamide-imides (PAIs) via an eco-friendly direct polycondensation process. The glass transition temp
Publikováno v:
Applied Sciences
Volume 9
Issue 3
Applied Sciences, Vol 9, Iss 3, p 578 (2019)
Volume 9
Issue 3
Applied Sciences, Vol 9, Iss 3, p 578 (2019)
Six kinds of chiral polyamide-imides (PAI3a&ndash
3f) have successfully been synthesized via direct polycondensation. The thermal properties of the materials were evaluated by the gravimetric analysis (TGA) and differential scanning calorimetry
3f) have successfully been synthesized via direct polycondensation. The thermal properties of the materials were evaluated by the gravimetric analysis (TGA) and differential scanning calorimetry
Publikováno v:
Green Processing and Synthesis, Vol 5, Iss 4, Pp 419-425 (2016)
As a green, safe and eco-friendly solvent, ionic liquids (ILs) have been widely used in organic syntheses. In this paper, polyamide-imides (PAIs) based on different chain length of amino acids were synthesized by two methods, i.e. in the presence of
Publikováno v:
Polymer Degradation and Stability. 129:231-238
The l -alanine, glycine and 4-aminobutyric acid, respectively representing the natural chiral amino acids, the natural achiral amino acids and non-natural achiral amino acids, were combined into three types of diacid monomers containing the imide gro