Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres
Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to a...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | en |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2019
|
| Online Access: | http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf http://journalarticle.ukm.my/14408/ http://www.ukm.my/jsm/malay_journals/jilid48bil10_2019/KandunganJilid48Bil10_2019.htm |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1834432402879938560 |
|---|---|
| author | Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, |
| author_facet | Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, |
| author_sort | Wafiuddin Ismail, |
| building | Tun Sri Lanang Library |
| collection | Institutional Repository |
| content_provider | Universiti Kebangsaan Malaysia |
| content_source | UKM Journal Article Repository |
| continent | Asia |
| country | Malaysia |
| description | Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to attach the PEG arm to the star-shaped polymer with discrete core of dipentaerythritol. The polymer chemical structure was characterized by FT-IR. The molecular weight (Mn) determined from 1H NMR spectra showed that the star polymer has approximately the same molecular weight as the theoretical value. The polydispersity index indices (PDI) (>1.5) from GPC were narrow suggesting controlled polymerization reaction. Thermal stability of the star-shaped 6PCG were examined using thermogravimetric analysis, (TGA) and differential scanning calorimetry, (DSC) and showed slight increase compared to homopolymer star PCL due to the changes of end-group functionalities. Six-arm star-shaped PCL-b-PEG was dissolved in chloroform/methanol solvents and the resulting solution was used for electrospinning process. The morphology of nanofibres showed fine fibres without beads and thus a possible potential for several applications. |
| format | Article |
| id | my-ukm.journal.14408 |
| institution | Universiti Kebangsaan Malaysia |
| language | en |
| publishDate | 2019 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | eprints |
| spelling | my-ukm.journal.144082020-03-10T02:35:13Z http://journalarticle.ukm.my/14408/ Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, Star-shaped polymers have vast potential in application due to their architecture. In this study, a 6-arm star-shaped of poly(ԑ-caprolactone)-b-poly(ethylene glycol), (6PCG) was synthesized via ring opening polymerization, (ROP) of ԑ-caprolactone and Steiglich esterification (coupling reaction) to attach the PEG arm to the star-shaped polymer with discrete core of dipentaerythritol. The polymer chemical structure was characterized by FT-IR. The molecular weight (Mn) determined from 1H NMR spectra showed that the star polymer has approximately the same molecular weight as the theoretical value. The polydispersity index indices (PDI) (>1.5) from GPC were narrow suggesting controlled polymerization reaction. Thermal stability of the star-shaped 6PCG were examined using thermogravimetric analysis, (TGA) and differential scanning calorimetry, (DSC) and showed slight increase compared to homopolymer star PCL due to the changes of end-group functionalities. Six-arm star-shaped PCL-b-PEG was dissolved in chloroform/methanol solvents and the resulting solution was used for electrospinning process. The morphology of nanofibres showed fine fibres without beads and thus a possible potential for several applications. Penerbit Universiti Kebangsaan Malaysia 2019-10 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf Wafiuddin Ismail, and Rusli Daik, and Shafida Abd Hamid, and Wan Khartini Wan Abdul Khodir, (2019) Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres. Sains Malaysiana, 48 (10). pp. 2265-2275. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil10_2019/KandunganJilid48Bil10_2019.htm |
| spellingShingle | Wafiuddin Ismail, Rusli Daik, Shafida Abd Hamid, Wan Khartini Wan Abdul Khodir, Synthesis and characterization of star-shaped (PCL-B-PEG) as potential electrospun microfibres |
| title | Synthesis and characterization of star-shaped (PCL-B-PEG)
as potential electrospun microfibres |
| title_full | Synthesis and characterization of star-shaped (PCL-B-PEG)
as potential electrospun microfibres |
| title_fullStr | Synthesis and characterization of star-shaped (PCL-B-PEG)
as potential electrospun microfibres |
| title_full_unstemmed | Synthesis and characterization of star-shaped (PCL-B-PEG)
as potential electrospun microfibres |
| title_short | Synthesis and characterization of star-shaped (PCL-B-PEG)
as potential electrospun microfibres |
| title_sort | synthesis and characterization of star-shaped (pcl-b-peg)
as potential electrospun microfibres |
| url | http://journalarticle.ukm.my/14408/1/23%20Wafiuddin%20Ismail.pdf http://journalarticle.ukm.my/14408/ http://www.ukm.my/jsm/malay_journals/jilid48bil10_2019/KandunganJilid48Bil10_2019.htm |
| url_provider | http://journalarticle.ukm.my/ |