Synthesis Characterization and Viscosity Studies of聽Homopolymer of聽Methyl Methacrylate and Copolymer of聽Methyl Methacrylate and Styrene
| 详细信息 | 推荐本文 | |
- 作者：Pranab Ghosh ; Tapan Das and Debabrata Nandi
- 关键词：Homopolymer ; Copolymer ; Intrinsic viscosity ; Specific viscosity ; Reduced viscosity ; Rheological properties ; Shear stability ; Pour point depressant ; Viscosity modifier
- 刊名：Journal of Solution Chemistry
- 出版时间：January 2011
- 出版年：2011
- 期刊代码：24_00959782
- 类别：en
- 卷：40
- 期：1
- 页码：67-78
- 数据来源：sp
摘要
A homopolymer of methyl methacrylate (MMA) and its copolymer with styrene at different compositions were synthesized and characterized. Viscosity measurements of the synthesized homopolymer and the copolymers in toluene solutions were performed at 313 K. Different equations were used to calculate the intrinsic viscosity, viscometric constants values, and molecular weight of the synthesized polymers. The values of intrinsic viscosity and viscosity average molecular weight obtained by the two methods (single point determination and graphical extrapolation) were compared in order to verify the validity of the single point determination for the polymers. Viscometric properties derived included the specific viscosity (it determines the contribution of the solute to the viscosity of the solution), the reduced viscosity (that provides a measure of the polymer capacity for increasing the solution viscosity), and the intrinsic viscosity.