STUDYING REACTIVITY RATIOS AND PHYSICAL PROPERTIES OF METHACRYLIC ACID - ETHYL ACRYLATE COPOLYMER

Tran Vu Thang, Pham Thi Thu Ha, Nguyen Van Khoi, Nguyen Van Manh, Pham Thi Thu Trang
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Authors

  • Tran Vu Thang Viện Hóa Học
  • Pham Thi Thu Ha Viện Hóa học - Viện Hàn lâm KH&CN Việt Nam
  • Nguyen Van Khoi Viện Hóa học - Viện Hàn lâm KH&CN Việt Nam
  • Nguyen Van Manh Viện Hóa học - Viện Hàn lâm KH&CN Việt Nam
  • Pham Thi Thu Trang Viện Hóa học - Viện Hàn lâm KH&CN Việt Nam

DOI:

https://doi.org/10.15625/0866-708X/53/2/4002

Keywords:

copolymerization, reactivity ratios, methacrylic acid, ethyl acrylate, 2, 2-azobisisobutyronitrile.

Abstract

The copolymerization of methacrylic acid (MAA) and ethyl acrylate (EA) was performed by free radical polymerization in ethanol, in the presence of 2,2-azobisisobutyronitrile (AIBN) as an initiator. The reactivity ratios of monomers were caculatured by Kelen-Tudos method using data from elemental analysis. The charaterstics of the copolymes were studied by IR spectroscopy, DSC, gel permeation chromatography (GPC) and TGA analysis methods. The results showed that MAA has higher reactivity than EA (rMAA = 2.63 and rEA = 0.21), glass transiton temperature of copolyme Tg = 146 oC, the average molecular weight of the copolymers Mw = 251000 (u) and the polydispersity index (PDI) Mw/Mn = 1.70.

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Published

21-04-2015

How to Cite

[1]
T. V. Thang, P. T. T. Ha, N. V. Khoi, N. V. Manh, and P. T. T. Trang, “STUDYING REACTIVITY RATIOS AND PHYSICAL PROPERTIES OF METHACRYLIC ACID - ETHYL ACRYLATE COPOLYMER”, Vietnam J. Sci. Technol., vol. 53, no. 2, p. 187, Apr. 2015.

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