Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides
Joint Authors
Gokturk, Ersen
Reyhanoglu, Yosif
Source
Journal of Saudi Chemical Society
Issue
Vol. 23, Issue 7 (30 Nov. 2019), pp.879-886, 8 p.
Publisher
Publication Date
2019-11-30
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Abstract EN
Polyglycolic acid (PGA), which is an important biodegradable polymer, can traditionally be synthesized through the ring opening polymerization of glycolide (with mostly using tin octano-ate catalyst).
Our previous studies revealed that PGA was alternatively synthesized with one-step cationic polymerization of formaldehyde from trioxane and carbonmonoxide (CO), sustainable C1 feedstocks obtainable from biomethanol or biogas.
PGA and its copolymers can be mainly used for the biomedical applications due to their biocompatibility and biodegradability.
In order to uti-lize PGA in other marketing materials such as packaging, PGA should be specifically engineered to improve its physical properties by a copolymerization strategy utilizing appropriate comonomers since PGA displays brown or beige color and is not soluble in most organic solvents due to its very high crystallinity.
In this study; to improve on the physical properties of PGA, such as melting tem-perature and solubility, polymerizations of trioxane, CO and a minor amount of epoxides with long side chains were performed under the same reaction condition as PGA homopolymer synthesis (DCM solvent, at 800 psi, with triflic acid catalyst, reaction time of 72 h).
The results have shown that optimum polymerizations were achieved at lower reaction temperatures than that of PGA homopolymer synthesis (110 °C versus 170 °C).
The melting temperatures of all copolymers are lower, and the colors of the copolymers have become lighter than that of PGA homopolymer.The solubilities of obtained copolymers also increased by increasing side chain length of epoxidesin the polymer backbone
American Psychological Association (APA)
Reyhanoglu, Yosif& Gokturk, Ersen. 2019. Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides. Journal of Saudi Chemical Society،Vol. 23, no. 7, pp.879-886.
https://search.emarefa.net/detail/BIM-1493923
Modern Language Association (MLA)
Reyhanoglu, Yosif& Gokturk, Ersen. Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides. Journal of Saudi Chemical Society Vol. 23, no. 7 (Nov. 2019), pp.879-886.
https://search.emarefa.net/detail/BIM-1493923
American Medical Association (AMA)
Reyhanoglu, Yosif& Gokturk, Ersen. Synthesis of polyglycolic acid copolymers from cationic copolymerization of C1 feedstocks and long chain epoxides. Journal of Saudi Chemical Society. 2019. Vol. 23, no. 7, pp.879-886.
https://search.emarefa.net/detail/BIM-1493923
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 886
Record ID
BIM-1493923