scholarly journals Synthesis of a Biodegradable PLA: NMR Signal Deconvolution and End-Group Analysis

2021 ◽  
Author(s):  
Juana M. Pérez ◽  
Cristina Ruiz ◽  
Ignacio Fernández
Keyword(s):  
Group Analysis ◽  
Signal Deconvolution ◽  
End Group

scholarly journals THE ISOTOPE DERIVATIVE METHOD OF PROTEIN AMINO END-GROUP ANALYSIS

1951 ◽  
Vol 190 (2) ◽  
pp. 733-740 ◽  
Author(s):  
Sidney. Udenfriend ◽  
Sidney F. Velick
Keyword(s):  
Group Analysis ◽  
Derivative Method ◽  
End Group

scholarly journals Genetic Polymorphism in Caseins of Cow's Milk. V. End-Group Analysis of β-Caseins A, B, and C

1965 ◽  
Vol 48 (7) ◽  
pp. 884-887 ◽  
Author(s):  
E.B. Kalan ◽  
M.P. Thompson ◽  
Rae Greenberg ◽  
L. Pepper
Keyword(s):  
Genetic Polymorphism ◽  
Group Analysis ◽  
Cow’S Milk ◽  
Cow's Milk ◽  
End Group

scholarly journals Sizing and Thermal Stability of Prepared Tetraaminophthalocyaninatocopper(II) Derivatives-grafted Polymers

2016 ◽  
Vol 13 (2) ◽  
pp. 221-234
Author(s):  
Baghdad Science Journal
Keyword(s):  
Thermal Stability ◽  
Ethylene Glycol ◽  
Group Analysis ◽  
Condensation Polymerization ◽  
Grafted Polymers ◽  
Poly Ethylene Glycol ◽  
Molecular Weights ◽  
Poly Ethylene ◽  
Thermal Stability Of ◽  
End Group

Different polymers were prepared by condensation polymerization of sebacic anhydride and adipic anhydride with ethylene glycol and poly(ethylene glycol). Their number average molecular weights were determined by end group analysis. Then, they were grafted on the prepared phthalocyaninatocopper(II) compounds with the general formula (NH2)4PcCu(II) having amino groups of 3,3',3'',3'''- or 4,4',4'',4'''- positions. All prepared polymers, compounds, and phthalocyaninatocopper(II)-grafted polymers were characterized by FTIR. The sizing measurements were carried out in 3,3',3'',3'''- (NH2)4PcCu(II) and 4,4',4'',4'''- (NH2)4PcCu(II) compounds with and without grafting polymers. The results showed that the grafting process led to decreasing in particle size and increasing in surface area. The grafting process was reflected positively on the thermal degradation of 3,3',3'',3'''- (NH2)4PcCu(II) and 4,4',4'',4'''- (NH2)4PcCu(II) grafted polymers. They had higher thermal stability accompanied with higher char residue and T50% weight loss with 3,3',3'',3'''-(NH2)4PcCu(II) and their grafted polymers being the best.

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