Synthesis, characterization and surface properties of amphiphilic polystyrene-b-polypropylene glycol block copolymers

The new macroazoinitiators containing poly (propylene glycol), (PPG), with molecular weight 400 and 2000, having hydrophilic character, were synthesized and polymerized with styrene to prepare PS-b-PPG block copolymers. Cast films and e-spun films were prepared and contact angles of these films with water drop were measured to examine hydrophilic/hydrophobic behavior of the copolymers. Each e-spun film with average fiber diameters from 0.25 to 2.20 µm was prepared in N,N-dimethylformamide (DMF) under controlled electrospinning process parameters such as polymer concentration, applied voltage and tip-to-collector distance. Scanning electron microscope (SEM) images of the electrospun films were taken to determine the fiber diameters. Surface compositions of the block copolymers were also determined by using an electron spectrometer with Mg K? X-rays. NMR, and FT-IR spectroscopic, and GPC measurements were employed to characterize and determine the PPG contents (6-43%). From the results, electrospinning process increased the hydrophilic properties of the block copolymers obtained, compared their cast film forms. Our results suggest that these polymers are favorable in biological applications in cases where high ratio of the surface to volume and hydrophilicity are required simultaneously. Both chemical structure and topology of the films are important in wetting and hydrophobicity. © 2005 Elsevier Ltd. All rights reserved.

Dergi Adı European Polymer Journal
Dergi Cilt Bilgisi 42
Dergi Sayısı 4
Sayfalar 740 - 750
Yayın Yılı 2006
Eser Adı
[dc.title]
Synthesis, characterization and surface properties of amphiphilic polystyrene-b-polypropylene glycol block copolymers
Yazar
[dc.contributor.author]
Allı, Abdulkadir
Yazar
[dc.contributor.author]
Hazer, Baki
Yazar
[dc.contributor.author]
Menceloğlu, Yusuf
Yazar
[dc.contributor.author]
Süzer, Şefik
Yayın Yılı
[dc.date.issued]
2006
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The new macroazoinitiators containing poly (propylene glycol), (PPG), with molecular weight 400 and 2000, having hydrophilic character, were synthesized and polymerized with styrene to prepare PS-b-PPG block copolymers. Cast films and e-spun films were prepared and contact angles of these films with water drop were measured to examine hydrophilic/hydrophobic behavior of the copolymers. Each e-spun film with average fiber diameters from 0.25 to 2.20 µm was prepared in N,N-dimethylformamide (DMF) under controlled electrospinning process parameters such as polymer concentration, applied voltage and tip-to-collector distance. Scanning electron microscope (SEM) images of the electrospun films were taken to determine the fiber diameters. Surface compositions of the block copolymers were also determined by using an electron spectrometer with Mg K? X-rays. NMR, and FT-IR spectroscopic, and GPC measurements were employed to characterize and determine the PPG contents (6-43%). From the results, electrospinning process increased the hydrophilic properties of the block copolymers obtained, compared their cast film forms. Our results suggest that these polymers are favorable in biological applications in cases where high ratio of the surface to volume and hydrophilicity are required simultaneously. Both chemical structure and topology of the films are important in wetting and hydrophobicity. © 2005 Elsevier Ltd. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Amphiphilic copolymers
Konu Başlıkları
[dc.subject]
E-spun fiber
Konu Başlıkları
[dc.subject]
Electrospinning
Konu Başlıkları
[dc.subject]
Macroazoinitiator
Künye
[dc.identifier.citation]
Allı, A., Hazer, B., Menceloğlu, Y. ve Süzer, Ş. (2006). Synthesis, characterization and surface properties of amphiphilic polystyrene-b-polypropylene glycol block copolymers. European Polymer Journal, 42(4), 740-750. doi:10.1016/j.eurpolymj.2005.09.032
Haklar
[dc.rights]
info:eu-repo/semantics/openAccess
ISSN
[dc.identifier.issn]
0014-3057
Sponsor YAYINCI
[dc.description.sponsorship]
This work was financially supported by Zonguldak Karaelmas University Research Fund.
İlk Sayfa Sayısı
[dc.identifier.startpage]
740
Son Sayfa Sayısı
[dc.identifier.endpage]
750
Dergi Adı
[dc.relation.journal]
European Polymer Journal
Dergi Sayısı
[dc.identifier.issue]
4
Dergi Cilt Bilgisi
[dc.identifier.volume]
42
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/j.eurpolymj.2005.09.032
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7786
Tam Metin İndirmek için tıklayın Ön izleme
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
44
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
15 Şubat 2024 19:49
Google Kontrol
Tıklayınız
copolymers hydrophilic results electrospinning prepared process electron diameters determine e-spun increased properties compared obtained contents (6-43%) spectrometer X-rays spectroscopic measurements employed characterize favorable reserved rights Elsevier hydrophobicity wetting important topology structure chemical simultaneously suggest required
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms