Research of Synthesis and Heat Resistance on Lactic Acid-Styrene-Maleic Anhydride Copolymer

2013 ◽  
Vol 772 ◽  
pp. 25-29
Author(s):  
Jian Jiang Shang ◽  
Li Na Jiang ◽  
De Qiang Li ◽  
Xiao Yan Zhu
Keyword(s):  
Lactic Acid ◽  
Maleic Anhydride ◽  
Heat Resistance ◽  
Polymerization Process ◽  
Scanning Calorimetry ◽  
Thermo Gravimetric ◽  
Thermo Gravimetric Analyzer ◽  
Melt Copolymerization ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

The polymerization process and heat resistance of lactic acid-styrene-maleic anhydride copolymer was studied. Lactic acid-polystyrene-maleic anhydride copolymer was prepared with styrene, maleic anhydride and lactic acid by melt copolymerization. Its structure was characterized by Infrared Spectrum (IR), and the thermal properties were tested by Differential Scanning Calorimetry (DSC) and Thermo Gravimetric Analyzer (TGA). The paper research on the effect of the proportion of different monomer and the polymerization process on the heat resistance mainly. The optimum conditions for the synthesis were determined by means of experiment: the content of catalyst was 0.5(wt%), the ratio of styrene-maleic anhydride and lactic was 0.6g/10g, at 170 °C. for 5 h. The results showed that the glass transition temperature (Tg) of the copolymer increased by 26.0°C.and the 5% weight-loss temperature of it increased by 25.0°C compared with pure polylactic acid.

Curing of Epoxy Resin with Styrene–Maleic Anhydride Copolymer: A Differential Scanning Calorimetric Investigation

1996 ◽  
Vol 8 (2) ◽  
pp. 281-293 ◽  
Author(s):  
R A Vora ◽  
H C Trivedi ◽  
C P Patel ◽  
J T Guthrie ◽  
Algy Kazlauciunas ◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Epoxy Resin ◽  
Differential Scanning Calorimetric ◽  
Calorimetric Investigation ◽  
Scanning Calorimetry ◽  
First Order ◽  
First Order Kinetics ◽  
Dynamic Scan ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

Curing reactions of epoxy resin (EP-450) with stryene–maleic anhydride copolymer (St–MAn) samples are investigated by differential scanning calorimetry at a scan rate of 10 °C min−1 in an N2 atmosphere. The overall kinetic parameters of the curing reactions are estimated using Barrett as well as Freeman–Carroll methods based on a single dynamic scan. The curing reactions are found to follow overall first-order kinetics up to about 60–70% completion. Thermogravimetric analysis (TGA) of all the cured samples of epoxy resin (EP-450) with St–MAn copolymer samples has also been carried out at a heating rate of 10 °C min−1 in air.

Styrene-maleic anhydride copolymer esters as flow improvers of waxy crude oil

2009 ◽  
Vol 65 (3-4) ◽  
pp. 139-146 ◽  
Author(s):  
A.M. Al-Sabagh ◽  
M.R. Noor El-Din ◽  
R.E. Morsi ◽  
M.Z. Elsabee
Keyword(s):  
Maleic Anhydride ◽  
Crude Oil ◽  
Waxy Crude Oil ◽  
Waxy Crude ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer

Styrene-Maleic Anhydride Copolymer Esters as Flow Improvers of Waxy Crude Oil

2009 ◽  
Vol 30 (3) ◽  
pp. 420-426 ◽  
Author(s):  
A. M. Al-Sabagh ◽  
M. R. Noor El-Din ◽  
R. E. Morsi ◽  
M. Z. Elsabee
Keyword(s):  
Maleic Anhydride ◽  
Crude Oil ◽  
Waxy Crude Oil ◽  
Waxy Crude ◽  
Styrene Maleic Anhydride ◽  
Maleic Anhydride Copolymer
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