Enhance the thermal stability of PMMA by predecomposing its defect structures in a continuous polymerization process

Author

Chunlei Cao ; Zhang, Xiumei ; Zhang, Zijian ; Liu, Zhenguo ; Zhang, Huixuan

Author_Institution

Changchun Inst. of Appl. Chem., Chinese Acad. of Sci., Changchun, China

fYear

2011

fDate

26-28 July 2011

Firstpage

5829

Lastpage

5832

Abstract

This paper presents a novel idea that PMMA with high thermal stability may be produced by predecomposing way to remove the chains with head-to head linkages or unsaturated ends during a high temperature continuous polymerization, and, which tested by a pilot continuous polymerization equipment and thermogravimeter (TGA). The result shows that the idea is feasible and efficient, when the reaction and devolatilization steps were carried out at 155 and 300 °C, the chains with the head-to-head linkages or unsaturated ends in free radically polymerized PMMA can be removed completely. The obtained PMMA has an onset temperature of thermal degradation higher than 310

Keywords

polymerisation; thermal analysis; thermal stability; PMMA; TGA; continuous polymerization process; defect structures; devolatilization; head-to-head linkages; high temperature continuous polymerization; poly(methyl methacrylate); predecomposition; temperature 155 C; temperature 300 C; thermal stability; thermogravimeter; Couplings; Degradation; Polymers; Stability analysis; Temperature measurement; Thermal degradation; Thermal stability; Head-to-head linkages; PMMA; Predecomposition; Thermal stability; Unsaturated ends;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2011 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-61284-771-9

Type

conf

DOI

10.1109/ICMT.2011.6002521

Filename

6002521