PRELIMINARY STUDY OF 4-ARMS POLY(CAPROLACTONE) STAR-SHAPED POLYMER: SYNTHESIS AND CHARACTERIZATION

  • Wafiuddin Ismail International Islamic University Malaysia
  • Siti Hajar Ahmad Shariff

Abstract

Star-shaped polymers have vast potential in bioapplication due to their architecture.  In this study, 4 -arm star-shaped of poly(ԑ-caprolactone) (4s PCL) with -OH terminal and average molecular weight (Mn) of 5, 10, and 15 kDa, were synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone (ԑ-CL) using a symmetric pentaerythritol (PET) as the core. Different molecular weight were obtained by using different ratio of ԑ-CL and PET in the presence of catalyst, stannous octoate (Sn(Oct)2). The FTIR spectra showed the presence of bands of methylene group of polymer repeating chain which confirm ROP of the ԑ-caprolactone. The molecular weight (Mn) determined from 1H NMR analysis showed that all 4s PCLs have approximately the same molecular weight as the theoretical values. TGA and DSC analysis showed a single step degradation for all 4s PCL and the crystallization melting point of the polymers within the range of melting point of PCL.

Published
2021-04-30
How to Cite
ISMAIL, Wafiuddin; AHMAD SHARIFF, Siti Hajar. PRELIMINARY STUDY OF 4-ARMS POLY(CAPROLACTONE) STAR-SHAPED POLYMER: SYNTHESIS AND CHARACTERIZATION. Journal of Academia, [S.l.], v. 9, n. 1, p. 127-138, apr. 2021. ISSN 2289-6368. Available at: <https://myjms.mohe.gov.my/index.php/joa/article/view/11199>. Date accessed: 28 sep. 2022.
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