PROCESS OPTIMIZATION OF POLY(ε-CAPROLACTONE) SYNTHESIS BY RING OPENING POLYMERIZATION

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LIPIK V.T.; ABADIE M.J.M.

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Journal Paper

Paper Information

Journal: Iranian Polymer Journal Year:2010 | Volume:19 | Issue:11 (125) Page(s): 885-893

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Information Journal Paper

Title

PROCESS OPTIMIZATION OF POLY(ε-CAPROLACTONE) SYNTHESIS BY RING OPENING POLYMERIZATION

Author(s)

LIPIK V.T. | ABADIE M.J.M. | Issue Writer Certificate

Keywords

POLYESTERS

RING OPENING POLYMERIZATION COMPUTER MODELLING

POLYESTER

MATRIX-ASSISTED LASER DESORPTION/ IONIZATION

Abstract

The reaction conditions employed for the synthesis of biodegradable polymers via coordinated anionic ring opening polymerization (CAROP) can be very different and may result in differences between the target and actual product molar masses. Influence of three parameters, monomer (e-caprolactone) concentration, initiator/catalyst molar ratio, monomer/initiator molar ratio, on real polymer molar mass has been studied. Our modelling embodied a mathematical equation through which we calculated the initiator/catalyst (alcohol/stannous 2-ethylhexanoate) ratio for all given monomer concentrations and targeted molar masses of the polymers. We have established that in order to synthesize a polymer of certain molar mass, a lower amount of catalyst would be required when higher monomer concentrations are used. The amount of catalyst required was found to decrease as the target molar mass of the polymer increases. This reduction becomes sharper with increasing monomer concentration. For example, the initiator/catalyst ratios of 33, 24 and 10 are needed to synthesize polycaprolactones with molar masses of 10,000, 20,000 and 50,000 Da accordingly at monomer concentration of 1 mol/L. The initiator/catalyst ratio of 40 is less subjected to the influence of monomer concentration and may be used to calculate the universal amount of catalyst required for the synthesis of polymers with a particular molar mass by ring opening polymerization. The proposed mathematical model was confirmed by syntheses of polymers with different molar masses and initiators.

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APA: Copy

LIPIK, V.T., & ABADIE, M.J.M.. (2010). PROCESS OPTIMIZATION OF POLY(ε-CAPROLACTONE) SYNTHESIS BY RING OPENING POLYMERIZATION. IRANIAN POLYMER JOURNAL (ENGLISH), 19(11 (125)), 885-893. SID. https://sid.ir/paper/557373/en

Vancouver: Copy

LIPIK V.T., ABADIE M.J.M.. PROCESS OPTIMIZATION OF POLY(ε-CAPROLACTONE) SYNTHESIS BY RING OPENING POLYMERIZATION. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2010;19(11 (125)):885-893. Available from: https://sid.ir/paper/557373/en

IEEE: Copy

V.T. LIPIK, and M.J.M. ABADIE, “PROCESS OPTIMIZATION OF POLY(ε-CAPROLACTONE) SYNTHESIS BY RING OPENING POLYMERIZATION,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 19, no. 11 (125), pp. 885–893, 2010, [Online]. Available: https://sid.ir/paper/557373/en

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