Thermal polycondensation of sugar fluoride to form highly branched polysaccharide

2007 ◽  
Vol 45 (17) ◽  
pp. 3851-3860 ◽  
Author(s):  
Atsushi Kanazawa ◽  
Shingo Namiki ◽  
Masato Suzuki
Keyword(s):  
Thermal Polycondensation

Potentiometric titration behavior of polyaspartic acid prepared by thermal polycondensation

Biosystems ◽  
1977 ◽  
Vol 9 (4) ◽  
pp. 211-214 ◽  
Author(s):  
Etsuo Kokufuta ◽  
Shinnichiro Suzuki ◽  
Kaoru Harada
Keyword(s):  
Potentiometric Titration ◽  
Polyaspartic Acid ◽  
Thermal Polycondensation

Study of Dependence of Softening Point on Mesophase Content of Petroleum Pitches from Heavy Pyrolysis Resin and Decantoil

2021 ◽  
Vol 625 (3) ◽  
pp. 28-31
Author(s):  
P. V. Kugatov ◽  
◽  
B. S. Zhirnov ◽  
A. E. Eremenko ◽  
◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Catalytic Cracking ◽  
Softening Point ◽  
Isothermal Holding ◽  
Gas Oil ◽  
Heavy Gas Oil ◽  
Preliminary Preparation ◽  
Thermal Polycondensation ◽  
Heavy Gas ◽  
Heavy Pyrolysis Resin

Samples of petroleum pitches were obtained from heavy pyrolysis resin and decantoil (heavy gas-oil of catalytic cracking) by thermal polycondensation at atmospheric pressure, temperatures of 380–400 and 410–440°С (for resin and decantoil, respectively) and isothermal holding time of 30–480 min. Analysis of the dependence of the softening point on the mesophase content for the obtained samples showed that at the same mesophase content, decantoil pitches exhibit a lower softening point compared to pyrolysis resin pitches, for which, even at 30 % mesophase, the softening point approaches 300°C. This suggests that it is impossible to obtain pitch from pyrolysis resin with high mesophase content without preliminary preparation (for example, by hydrogenation). On the other hand, it has been shown that for pitches from decantoil, it is possible to isolate the mesophase up to 65% or more with a softening point not higher than 250°C.

Thermal polycondensation of diphenylsilanediol in the presence of colloidal lead

1970 ◽  
Vol 12 (11) ◽  
pp. 2893-2899
Author(s):  
M.T. Bryk ◽  
Z.T. Il'ina ◽  
E.M. Natanson
Keyword(s):  
Colloidal Lead ◽  
Thermal Polycondensation

A New Thermal Polycondensation of Alanine in Molten Urea

2002 ◽  
Vol 31 (4) ◽  
pp. 480-481 ◽  
Author(s):  
Masanori Terasaki ◽  
Shinya Nomoto ◽  
Hajime Mita ◽  
Akira Shimoyama
Keyword(s):  
Thermal Polycondensation

Nmr study of poly(aspartic acid). I. α- and β-Peptide bonds in poly(aspartic acid) prepared by thermal polycondensation

Biopolymers ◽  
1981 ◽  
Vol 20 (8) ◽  
pp. 1605-1614 ◽  
Author(s):  
H. Pivcová ◽  
V. Saudek ◽  
J. Drobník ◽  
J. Vlasák
Keyword(s):  
Aspartic Acid ◽  
Peptide Bonds ◽  
Nmr Study ◽  
Thermal Polycondensation
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