Rheological and structural characterization of HA/PVA-SbQ composites film-forming solutions and resulting films as affected by UV irradiation time

被引：46
作者：
Bai, Huiyu [1 ]
Sun, Yunlong [2 ]
Xu, Jing [3 ]
Dong, Weifu [1 ]
Liu, Xiaoya [1 ]
机构：
[1] Jiangnan Univ, Sch Chem & Mat Engn, Minist Educ, Key Lab Food Colloids & Biotechnol, Wuxi 214122, Jiangsu, Peoples R China
[2] E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China
[3] State Intellectual Property Off, Patent Off, Patent Examinat Cooperat Jiangsu Ctr, Suzhou 215011, Jiangsu, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2015年 / 115卷
基金：
美国国家科学基金会;
关键词：
Hyaluronan acid; PVA-SbQ; Photo-crosslinking; Composites film; Packaging material; DYNAMIC LIGHT-SCATTERING; PHOTO-CROSS-LINKING; HYALURONIC-ACID HYDROGEL; POLY(VINYL ALCOHOL); PHYSICAL-PROPERTIES; BARRIER PROPERTIES; POLYVINYL-ALCOHOL; DRUG-DELIVERY; IN-VITRO; GELATION;
D O I：
10.1016/j.carbpol.2014.08.103
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Hyaluronan (HA)/poly (vinyl alcohol) bearing styrylpyridinium groups (PVA-SbQ) composites film-forming solutions were prepared by a negatively charged HA and an oppositely charged PVA-SbQ. The rheological properties and structural characterization of HA/PVA-SbQ composites in aqueous solution were investigated. Zeta potential measurements and TEM were utilized to explore the formation of HA/PVA-SbQ complex micelles in aqueous solution. UV spectra and DLS experiments confirmed that the micelles are photo-crosslinkable. HA/PVA-SbQ composites films were prepared by a casting method. The microstructure and properties of the film were analyzed by SEM, optical transmittance, DSC, XRD and tensile testing. The crosslinked HA/PVA-SbQ composites films exhibited higher UV light shielding and visible light transparency and better mechanical and water vapor barrier properties as well as thermal stability than the uncrosslinked HA/PVA-SbQ composites films, indicating the formation of three-dimensional network structure. This work provided a good way for increasing the mechanical, thermal, water vapor barrier, and optical properties of HA materials for the packaging material. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：422 / 431
页数：10
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