Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1943
Title: Understanding the Effect of Skin Formation on the Removal of Solvents From Semicrystalline Polymers
Authors: Wong, Sim-Siong
Alsoy Altınkaya, Sacide
Mallapragada, Surya K.
Keywords: Crystalline materials
Multicomponent systems
Polymer crystallization
Polymers
Publisher: John Wiley and Sons Inc.
Source: Wong, S.S., Alsoy Altınkaya, S., and Mallapragada, S.K. (2005). Understanding the effect of skin formation on the removal of solvents from semicrystalline polymers. Journal of Polymer Science, Part B: Polymer Physics, 43(22), 3191-3204. doi:10.1002/polb.20615
Abstract: The effect of glassy skin formation on the drying of semicrystalline polymers was investigated with a comprehensive mathematical model developed for multicomponent systems. Polymers with high glass-transition temperatures can become rubbery at room temperature under the influence of solvents. As the solvents are removed from the polymer, a glassy skin can form and continue to develop. The model takes into account the effects of diffusion-induced polymer crystallization as well as glassy-rubbery transitions on the overall solvent content and polymer crystallinity. A Vrentas-Duda free-volume-based diffusion scheme and crystallization kinetics were used in our model. The polymer-solvent system chosen was a poly(vinyl alcohol) (PVA)-water-methanol system. The drying kinetics of PVA films were obtained by gravimetric methods with swollen films with known water/methanol concentrations. The overall drying behaviors of the polymer system determined by our model and experimental methods were compared and found to match well.
URI: http://doi.org/10.1002/polb.20615
http://hdl.handle.net/11147/1943
ISSN: 0887-6266
0887-6266
1099-0488
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
1943.pdfMakale394.68 kBAdobe PDFThumbnail
View/Open
Show full item record



CORE Recommender

SCOPUSTM   
Citations

24
checked on Dec 6, 2024

WEB OF SCIENCETM
Citations

25
checked on Nov 9, 2024

Page view(s)

308
checked on Dec 9, 2024

Download(s)

832
checked on Dec 9, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.