Preparation and thermal study of polymers derived from acrylamide

Preparation and thermal study of polymers derived from acrylamide

Polyacrylamide (PAA) and some of its N-alkyl substituted derivatives have been synthesised and characterised using thermal analysis. Thermal stability was studied by thermogravimetry (TG) and differential scanning calorimetry (DSC) was used to determine the glass transition temperatures ( T g). The...

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Bibliographic Details
Published in:Polymer degradation and stability Vol. 67; no. 3; pp. 491 - 495
Main Authors: Silva, Maria Elisa S.R.e, Dutra, Eider R., Mano, Valdir, Machado, José C.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-03-2000
Elsevier Science
Subjects:
Applied sciences
Chemical reactions and properties
Crosslinking, vulcanization
DSC
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polyacrylamide
Thermal analysis
TG
Thermal analysis
DSC
Polyacrylamide
Intermolecular interaction
Structure effect
Free radical polymerization
Alkyl
Acrylamide polymer
Steric hindrance
Property structure relationship
Kinetic parameter
Experimental study
Glass transition temperature
Acrylamide derivative polymer
Thermal stability
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Summary:Polyacrylamide (PAA) and some of its N-alkyl substituted derivatives have been synthesised and characterised using thermal analysis. Thermal stability was studied by thermogravimetry (TG) and differential scanning calorimetry (DSC) was used to determine the glass transition temperatures ( T g). The results showed an increase in degradation temperature ( T d) as the hydrogens of the amide nitrogen were replaced by alkyl groups. An opposite tendency was verified for T g values. The observed increase in T d values is discussed in terms of the formation of an intermediate ion in the degradation, while the decrease in T g values is discussed in terms of polymer–polymer interactions such as hydrogen bonds.
ISSN:0141-3910
1873-2321
DOI:10.1016/S0141-3910(99)00149-4