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Citation: HUANG Nian-Hua, ZHANG Qiang. TGA/FTIR Studies on Thermal Degradation of Ethylene-butyl Acrylater Copolyme[J]. Chinese Journal of Applied Chemistry, ;2007, 24(1): 95-99. shu

TGA/FTIR Studies on Thermal Degradation of Ethylene-butyl Acrylater Copolyme

HUANG Nian-Hua ^, ,
ZHANG Qiang

1.
School of Textile and Materials, Wuhan University of Science and Engineering, Wuhan 430073

Corresponding author: HUANG Nian-Hua,
Received Date: 27 January 2006
Available Online: 16 August 2006

The real time investigation of the gas products evolved during the thermal degradation of ethylene-butyl acrylate copolymer(EBA) was carried out in an inert atmosphere(nitrogen) with TGA/FTIR technique at 10℃ /min.TG curve shows that EBA has a high thermal stability, and the thermal degradation temperature of EBA is in the range of 330~480℃.Ester pyrolysis accounts for the thermal degradation mechanism of EBA.1-Butene and carboxylic groups are formed when ester pyrolysis occurs.Carboxylic groups decompose to eliminate CO₂ as shown by absorptions around 2 350 cm in FTIR spectrum.The main volatile decomposition products are 1-butene, CO₂ and acrylate containing fragments in the range of 320℃ ~430℃.However, the main volatile decomposition products from thermal degradation of the main chain of EBA are the low molecular weight chain-alkanes (-(CH₂)_n-(n≥4)) and acrylate containing fragments at a high temperature (>450℃ ), and the small amounts of CO is also detected.
- ethylene-butyl acrylate copolymer,
- thermal degradation,
- TGA/FTIR
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