IIAE CONFERENCE SYSTEM, The 5th IIAE International Conference on Industrial Application Engineering 2017 (ICIAE2017)

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Study on the Self-polymerization and Co-polymerization Properties of Gadolinium Methacrylate
Chunhong Wang, Ming Zhang

Last modified: 2017-02-21

Abstract


Gadolinium methacrylate (Gd(MAA)3) was synthesized through the reaction of gadolinium oxide and methacrylic acid and characterized by FT-IR spectroscopy, DSC and TGA. The non-isothermal and isothermal analysis were used to study the kinetics of self-polymerization of Gd(MAA)3. The monomer reactivity ratios of MMA/Gd(MMA)3 were calculated by K-T method. The results showed that Gd(MAA)3 could be induced to self-polymerization initiated by thermal and free radical and the activation energy of polymerization was 103.35kJ/mol in solid state and 58.55kJ/mol in aqueous solution. The rate of polymerization under low conversion was governed by the expression at 65℃: Rp=K[M]1.05[I]0.60. The values of r1 (MMA) and r2 (Gd(MAA)3) were 0.225 and 1.340.

Keywords


gadolinium methacrylate; thermal analysis; kinetics of the polymerization; monomer ratios.

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