Mechanism of thermal degradation of poly(vinyl acetate)

1975 ◽  
Vol 8 (1) ◽  
pp. 141-153 ◽  
Author(s):  
P. Bataille ◽  
B. T. Van
Keyword(s):  
Thermal Degradation ◽  
Vinyl Acetate

Thermal degradation of ethylene (vinyl acetate)

1996 ◽  
Vol 47 (1) ◽  
pp. 247-258 ◽  
Author(s):  
M. L. Marín ◽  
A. Jiménez ◽  
J. López ◽  
J. Vilaplana
Keyword(s):  
Thermal Degradation ◽  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate

Thermal Degradation of Poly(vinyl acetate): A Solid-State13C NMR Study

2001 ◽  
pp. 334-343 ◽  
Author(s):  
Caroline M. Dick ◽  
John J. Liggat ◽  
Colin E. Snape
Keyword(s):  
Thermal Degradation ◽  
Vinyl Acetate ◽  
Nmr Study

Thermal Degradation Behavior of Polypropylene and Ethylene Vinyl Acetate Copolymer Treated with Intumescent Flame Retardants Containing Caged Bicyclic Phosphates

2014 ◽  
Vol 936 ◽  
pp. 17-22
Author(s):  
Xin Li ◽  
Yu Xiang Ou
Keyword(s):  
Thermal Degradation ◽  
Vinyl Acetate ◽  
Flame Retardants ◽  
Ethylene Vinyl Acetate ◽  
Formation Mechanisms ◽  
Thermal Degradation Behavior ◽  
Flame Retarded ◽  
Intumescent Flame Retardants ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

Polypropylene (PP) and ethylene vinyl acetate copolymer (EVA) were treated with intumescent flame retardants containing caged bicyclic phosphates. The behavior of thermal degradation of the flame-retarded PP and EVA were studied by TG, DSC, and the FTIR spectra of PP’s residues at different temperature were recorded. In addition, the possible thermal degradation and char formation mechanisms were analyzed and discussed.

Thermal degradation in vinyl chloride: vinyl acetate copolymer

1990 ◽  
Vol 9 (8) ◽  
pp. 932-934 ◽  
Author(s):  
R. Singh ◽  
V. S. Panwar ◽  
P. C. Mehendru ◽  
N. P. Gupta
Keyword(s):  
Thermal Degradation ◽  
Vinyl Acetate ◽  
Vinyl Chloride ◽  
Acetate Copolymer

Heat Aging Behavior of Novel Poly (Phenylene-Ether) Based Thermoplastic Elastomers

2008 ◽  
Vol 81 (2) ◽  
pp. 244-264 ◽  
Author(s):  
Samik Gupta ◽  
Radha Kamalakaran ◽  
Avdhut Maldikar ◽  
Ashok Menon ◽  
Anil K. Bhowmick
Keyword(s):  
Mechanical Properties ◽  
Thermal Degradation ◽  
Vinyl Acetate ◽  
Degradation Mechanism ◽  
Ethylene Vinyl Acetate ◽  
Thermoplastic Elastomers ◽  
Chemical Degradation ◽  
Modulated Dsc ◽  
Structure Property ◽  
Aging Performance

Abstract The heat aging performance of a series of novel poly (phenylene ether) (PPE) based thermoplastic elastomers (TPEs) from styrene-ethylene-butylene-styrene (SEBS), ethylene vinyl acetate (EVA) and PPE-polystyrene (PS), was studied. This quaternary blend showed superior heat aging performance due to the high Tg thermoplastic component (PPE). At 80 °C, different compositions of the quaternary blends were exposed for 500 hours. Effects of compositions, vinyl acetate (VA) content of EVA and different molecular weights (MW) of SEBS, on the mechanical properties upon heat aging were analyzed in detail. A representative composition (based on the mechanical properties) of the quaternary blend (SEBS/EVA/PPE-PS: 45/30/25) was exposed at different temperatures, i.e. 80 °C, 120 °C, 140 °C and 170 °C, for 2000 hours. Thermal degradation profiles of change in tensile strength and percent elongation at break due to thermal degradation of the blends were monitored and “half-life” temperature was estimated. Using the Arrhenius equation, the “lifetime” of the quaternary blend was predicted (100,000 hours at ∼131 °C). Change in functionalities due to chemical degradation was also monitored using Fourier Transform Infrared Spectroscopy (FTIR). As a consequence of degradation, the shift in Tg was observed by temperature modulated DSC (Differential Scanning Calorimeter). Detailed microstructural studies were done to establish the structure-property correlation, for degraded as well as pristine materials. The degradation mechanism was elucidated on the basis of morphology and structure studies of the blends.

Sign in / Sign up

Export Citation Format

Share Document