Final Manuscript Zhao et al_.pdf (6.17 MB)
Microfluidic fabrication of novel polymeric core-shell microcapsules for storage of CO2 solvents and organic chelating agents
journal contribution
posted on 2022-02-10, 09:31 authored by Yuan Zhao, Seyedarash MoshtaghibanaSeyedarash Moshtaghibana, Tianle Zhu, Kehinde Fayemiwo, Adam Price, Goran VladisavljevicGoran VladisavljevicMonodispersed polymeric microcapsules loaded with CO2 solvents or chelating agents were produced by capillary microfluidics by photopolymerisation of three different UV curable materials, 1,6-hexanediol diacrylate (HDDA), Norland Optical Adhesive (NOA) 81, and Semicosil® 949 UV A/B (PDMS). Polymerization of HDDA and NOA 81 started after exposure to UVA light for 5 s and was completed within a minute, as confirmed by continuous FT-IR. Corrosive aqueous solutions of tetraethylenepentamine and diisopropyl iminodiacetic acid were encapsulated with 100% efficiency into poly(HDDA) and cured NOA81 shells without any leakage during prolonged storage. Poly(HDDA) shells were mechanically more stable than cured NOA81 and PDMS shells and resistant to drying-induced shell buckling. NOA81 and PDMS capsules underwent morphological changes during freeze drying leading to the formation of dimpled and crescent-moon-shaped particles, respectively. The storage stability in a hypotonic solution and buckling resistance of PDMS shells were significantly improved by embedding carbon-based nanomaterials into PDMS matrix. The incorporation of 0.5 wt% multi-walled carbon nanotubes into PDMS matrix led to an increase in a Shore A hardness from 1.6 to 2.3. A uniform distribution of MWCNTs in the polymer network was confirmed by XRD. All fabricated shells were thermally stable up to the temperature of 300°C.
Funding
China Council Scholarship
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
- Science
Department
- Chemical Engineering
- Chemistry
Published in
Journal of Polymer ScienceVolume
60Issue
11Pages
1727 - 1740Publisher
John Wiley & SonsVersion
- AM (Accepted Manuscript)
Rights holder
© Wiley Periodicals LLC.Publisher statement
This is the peer reviewed version of the following article: ZHAO, Y. ... et al, 2022. Microfluidic fabrication of novel polymeric core-shell microcapsules for storage of CO2 solvents and organic chelating agents. Journal of Polymer Science, 60 (11), pp.1727-1740, which has been published in final form at https://doi.org/10.1002/pol.20210959. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.Acceptance date
2022-02-08Publication date
2022-02-22Copyright date
2022ISSN
2642-4150eISSN
2642-4169Publisher version
Language
- en
Depositor
Dr Goran Vladisavljevic. Deposit date: 8 February 2022Usage metrics
Categories
No categories selectedLicence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC