Synthesis and properties of functional methacrylic copolymers

Abstracts

In the present work, a family of functionalized statistical copolymers was synthesized by radical polymerization from a varied composition of benzyl methacrylate (BzMA) and N,N-dimethylaminoethyl methacrylate (DMAEMA) comonomers using 2,2’-azobisisobutyronitrile (AIBN) as initiator. The characterization, identification, and composition analysis of each copolymer were carried out by spectroscopic methods (FTIR and 1H-NMR). Then, different properties were evaluated: molecular size was determined by measurement of intrinsic viscosity [η] in THF at 25 °C and glass transition temperature (Tg) analyzed by differential scanning calorimetry. Films were prepared by the solvent casting method from selected samples with different compositions and their mechanical properties were analyzed by tensile tests. It was observed that the composition of the functionalized copolymers substantially affects their macromolecular and mechanical properties, evidencing greater flexibility when the DMAEMA content in the copolymer increased.

Keywords:

• Benzyl methacrylate
• N,N-dimethylamino ethylmethacrylate
• radical copolymerization
• viscometry
• elastic module

Acknowledgments

M. L. Mosca is a student of the School of Exact Sciences, UNLP. T. G. Oberti and M. S. Cortizo are members of Scientific Researcher Career of CONICET and Professors of UNLP. A. Pesce and F. Amarilla are professional and technical personnel of CONICET.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

The authors are grateful for the support of the National Research Scientific and Technical of Argentina, ANCyT (PICT-2018-01931 and PICT-2019-02082), Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET (PIP-2015-D0047), National University of La Plata (UNLP-11/X769).