Transition behaviors and hybrid nanofibers of poly(vinyl alcohol) and polyethylene glycol-POSS telechelic blends

被引：28
作者：
Kim, Kyu-Oh [1 ]
Seo, Yun-A [2 ]
Kim, Byoung-Suhk [1 ]
Yoon, Kee-Jong [3 ]
Khil, Myung-Seob [2 ]
Kim, Hak-Yong [2 ]
Kim, Ick-Soo [1 ]
机构：
[1] Shinshu Univ, Fac Text Sci & Technol, Dept Biosci & Text Technol, Nagano 3860015, Japan
[2] Chonbuk Natl Univ, Dept Organ Mat & Fiber Engn, Jeonju 561756, South Korea
[3] Dankook Univ, Dept Fiber Syst Engn, Yongin 448701, South Korea
来源：
COLLOID AND POLYMER SCIENCE | 2011年 / 289卷 / 08期
关键词：
Nanofibers; Electrospinning; Poly(vinyl alcohol) (PVA); Polyhedral oligosilsesquioxane (POSS); Telechelic; Wettability; OLIGOMERIC SILSESQUIOXANE POSS; POLYHEDRAL OLIGOSILSESQUIOXANE; AMPHIPHILIC TELECHELICS; ELECTROSPUN NANOFIBERS; THERMAL-PROPERTIES; FABRICATION; MICROSTRUCTURE; NANOCOMPOSITES; MORPHOLOGY; WATER;
D O I：
10.1007/s00396-011-2407-y
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report solution properties of the blend solutions of poly(vinyl alcohol) (PVA) and poly(ethylene glycol) (PEG)-POSS telechelic and its corresponding hybrid nanofibers prepared by electrospinning. The morphologies, microstructures, and wettability of the resulting PVA/PEG3.4k-POSS hybrid nanofibers are studied. The morphologies of the resultant PVA/PEG3.4k-POSS nanofibers are regular with the fiber diameter ranging from 610 +/- 110 to 810 +/- 280 nm. When the content of PEG3.4k-POSS telechelic increases above 20 wt.%, the beaded fiber morphologies are observed due to severe aggregations of the PEG3.4k-POSS telechelics as well as increased viscosity at higher concentration. In addition, the solution properties of pure PEG3.4k-POSS telechelic solution (ca. 3-5 wt.%) and PVA/PEG3.4k-POSS solutions blended with PVA are explored, and found to show the reversible turbid-to-transparent transition behavior with respect to the solution temperature. Water contact angle measurement of the PVA/PEG3.4k-POSS nanofiber membranes demonstrates an enhanced hydrophobic nature due to the incorporated POSS moieties.
引用
收藏
页码：863 / 870
页数：8
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