Synthesis of succinic acid‐based polyamide through direct solid‐state polymerization method: Avoiding cyclization of succinic acid

2021 ◽  
pp. 51017
Author(s):  
Haijie Li ◽  
Yuting Shang ◽  
Wenrui Huang ◽  
Bingfeng Xue ◽  
Xiaomeng Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Succinic Acid ◽  
Solid State Polymerization ◽  
Polymerization Method ◽  
Direct Solid

New sustainable alternating semi‐aromatic polyamides prepared in bulk by direct solid‐state polymerization

2020 ◽  
Author(s):  
Martin Wolffs ◽  
Lucy Cotton ◽  
Ard J Kolkman ◽  
Rudy Rulkens
Keyword(s):  
Solid State ◽  
Aromatic Polyamides ◽  
Solid State Polymerization ◽  
Direct Solid

Copolymerization of poly(vinyl alcohol)-graft-poly(1,4-dioxan-2-one) with designed molecular structure by a solid-state polymerization method

2006 ◽  
Vol 44 (9) ◽  
pp. 3083-3091 ◽  
Author(s):  
Si-Chong Chen ◽  
Xiu-Li Wang ◽  
Ke-Ke Yang ◽  
Gang Wu ◽  
Yu-Zhong Wang
Keyword(s):  
Molecular Structure ◽  
Solid State ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Solid State Polymerization ◽  
Polymerization Method

scholarly journals New Aspects on the Direct Solid State Polycondensation (DSSP) of Aliphatic Nylon Salts: The Case of Hexamethylene Diammonium Dodecanoate

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2625
Author(s):  
Angeliki D. Mytara ◽  
Athanasios D. Porfyris ◽  
Stamatina N. Vouyiouka ◽  
Constantine D. Papaspyrides
Keyword(s):  
Molecular Weight ◽  
Solid State ◽  
Critical Parameter ◽  
Critical Parameters ◽  
Reaction Conditions ◽  
Solid State Polymerization ◽  
Salt Crystals ◽  
Direct Solid ◽  
End Group ◽  
Aliphatic Polyamide

The direct solid state polymerization (DSSP) of hexamethylene diammonium dodecanoate (PA 612 salt) was investigated for two different salt grades, fossil-based and bio-based. Aliphatic polyamide salts (such as PA 612 salt) are highly susceptible to solid melt transition (SMT) phenomena, which restrain the industrial application of DSSP. To that end, emphasis was given on reactor design, being the critical parameter influencing byproduct diffusion, amine loss and inherent DSSP kinetics. Experiments took place both at the microscale and the laboratory scale, in which two different reactors were tested in terms of bypassing SMT phenomena. The new reactor designed here proved quite successful in maintaining the solid state during the reaction. Scouting experiments were conducted in order to assess the effect of critical parameters and determine appropriate reaction conditions. Fossil-based PA 612 products proved to have a better end-group imbalance in comparison to bio-based ones, which is critical in terms of achieving high molecular weight. Finally, a real DSSP process was demonstrated, starting from PA 612 salt crystals and ending with PA 612 particles.

Polyimide Thin Films Produced by Direct Solid-State Polymerization of an Amino Anhydride Monomer

2000 ◽  
Vol 33 (26) ◽  
pp. 9477-9479 ◽  
Author(s):  
Timothy P. Bender ◽  
Zhi Yuan Wang
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Solid State Polymerization ◽  
Direct Solid

scholarly journals Synthesis, characterization of Ag@PANI core-shell nanostructures using solid state polymerization method

2019 ◽  
Vol 9 (3) ◽  
pp. 3934-3941 ◽  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Nano Composites ◽  
Core Shell ◽  
Sem Images ◽  
Shell Nanostructures ◽  
Vis Spectroscopy ◽  
Solid State Polymerization ◽  
The Fourier Transform ◽  
Polymerization Method

One-step reaction has been developed to obtain Ag@Polyanilin (Ag@PANI) core-shell nano-structures. Aniline sulphate was oxidized by silver nitrate using solid-state polymerization method at room temperature. The structure and morphology of the core-shell were characterized by the Fourier transform infrared (FTIR) spectra, Ultraviolet-Visible (UV–Vis) absorption spectra, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The XRD patterns displayed both the broad amorphous polymeric and sharp metallic peaks. The results from TEM and SEM images showed that the nano-composites have coreshell structures. The changes occurring in the structure of PANI are discussed on the basis of infrared and UV-Vis spectroscopy. The spectra revealed the formation of the nano-composites.

NMR and ESR studies of the solid-state polymerization of vinyl monomers. I. Acrylamide

1972 ◽  
Vol 10 (7) ◽  
pp. 1905-1922 ◽  
Author(s):  
C. Chachaty ◽  
A. Forchioni
Keyword(s):  
Solid State ◽  
Vinyl Monomers ◽  
Solid State Polymerization

Structure and γ-Ray-Induced Solid-State Polymerization of Sodium Propynoate: Influence of Bilayer Formation on Solid-State Reactivity

2000 ◽  
Vol 152 (1) ◽  
pp. 99-104 ◽  
Author(s):  
J.D. Jaufmann ◽  
C.B. Case ◽  
R.B. Sandor ◽  
Bruce M. Foxman
Keyword(s):  
Solid State ◽  
Solid State Polymerization ◽  
Γ Ray ◽  
Bilayer Formation
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