1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes the synthesis and characterization of poly(ethylene glycol) (PEG) and polydimethylsiloxane (PDMS) copolymers. The copolymers were synthesized by reacting hydroxyl group (-OH) of poly(ethylene glycol) (PEG) and polydimetylsiloxane (PDMS) with isocyanate group (R-N=C=O) of 1,6-hexamethylene diisocyanate (HMDI). The reaction was carried out at room temperature. The copolymers were synthesized in three different compositions which differ in molar ratios of PEG to PDMS. The ratios (PEG:PDMS) used were 2:6. 3:5 and 4:4. The formation of the copolymers was characterized by 1H Nuclear Magnetic Resonance (1H-NMR) for structural determination. The presence of proton signal at 4.80 ppm which belongs to the proton of urethane group indicates the formation of urethane links. The formation of urethane links showed that two homopolymers were linked together by HMDI to form longer copolymer chains. It is worth to note that the sequence of PEG and PDMS along the copolymer chain is random.

Original languageEnglish
Title of host publication2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1784
ISBN (Electronic)9780735414464
DOIs
Publication statusPublished - 17 Nov 2016
Event2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016 - Selangor, Malaysia
Duration: 13 Apr 201614 Apr 2016

Other

Other2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016
CountryMalaysia
CitySelangor
Period13/4/1614/4/16

Fingerprint

glycols
copolymers
ethylene
urethanes
nuclear magnetic resonance
diisocyanates
isocyanates
protons
room temperature
synthesis

Keywords

  • Block copolymers
  • Chemical shift (NMR)
  • NMR in structure determination

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Zainuddin, A. A., Othaman, R., Wan Mohd Noor, W. S. A., & Anuar, F. H. (2016). 1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium (Vol. 1784). [030023] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966761

1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer. / Zainuddin, Ain Athirah; Othaman, Rizafizah; Wan Mohd Noor, Wan Syaidatul Aqma; Anuar, Farah Hannan.

2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016. 030023.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zainuddin, AA, Othaman, R, Wan Mohd Noor, WSA & Anuar, FH 2016, 1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer. in 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. vol. 1784, 030023, American Institute of Physics Inc., 2016 Postgraduate Colloquium of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology, UKM FST 2016, Selangor, Malaysia, 13/4/16. https://doi.org/10.1063/1.4966761
Zainuddin AA, Othaman R, Wan Mohd Noor WSA, Anuar FH. 1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer. In 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784. American Institute of Physics Inc. 2016. 030023 https://doi.org/10.1063/1.4966761
Zainuddin, Ain Athirah ; Othaman, Rizafizah ; Wan Mohd Noor, Wan Syaidatul Aqma ; Anuar, Farah Hannan. / 1H-NMR characterization of poly(ethylene glycol) and polydimethylsiloxane copolymer. 2016 UKM FST Postgraduate Colloquium: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Vol. 1784 American Institute of Physics Inc., 2016.
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AB - This paper describes the synthesis and characterization of poly(ethylene glycol) (PEG) and polydimethylsiloxane (PDMS) copolymers. The copolymers were synthesized by reacting hydroxyl group (-OH) of poly(ethylene glycol) (PEG) and polydimetylsiloxane (PDMS) with isocyanate group (R-N=C=O) of 1,6-hexamethylene diisocyanate (HMDI). The reaction was carried out at room temperature. The copolymers were synthesized in three different compositions which differ in molar ratios of PEG to PDMS. The ratios (PEG:PDMS) used were 2:6. 3:5 and 4:4. The formation of the copolymers was characterized by 1H Nuclear Magnetic Resonance (1H-NMR) for structural determination. The presence of proton signal at 4.80 ppm which belongs to the proton of urethane group indicates the formation of urethane links. The formation of urethane links showed that two homopolymers were linked together by HMDI to form longer copolymer chains. It is worth to note that the sequence of PEG and PDMS along the copolymer chain is random.

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