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Electrospinning of Poly(1,4‐Cyclohexanedimethylene Acetylene Dicarboxylate): Study on the Morphology, Wettability, Thermal and Biodegradation Behaviors
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-11-13 , DOI: 10.1002/macp.202000310 Ozgun Daglar 1 , Cagatay Altinkok 1 , Gokhan Acik 2 , Hakan Durmaz 1
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-11-13 , DOI: 10.1002/macp.202000310 Ozgun Daglar 1 , Cagatay Altinkok 1 , Gokhan Acik 2 , Hakan Durmaz 1
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This study is conducted to evaluate the biodegradation and thermal features of poly(1,4‐cyclohexanedimethylene acetylene dicarboxylate) (PCA) based films and fibers. The PCA is characterized by Fourier transform infrared (FT‐IR) and proton nuclear magnetic resonance (1H‐NMR) spectroscopies and gel permeation chromatography (GPC). The beadless fibers of PCA are achieved by electrospinning from its solution under ambient conditions for the first time. The effects of applied voltage and tip‐to‐collector distance (TCD) on the various properties such as morphology, wettability, thermal, and biodegradability behaviors of fibers are investigated by comparing the non‐electrospun PCA. Morphologies and average frequency distributions of the electrospun samples are elucidated by scanning electron microscopy (SEM). Wettability properties of the studied samples are determined by water contact angle (WCA) measurements, whereas thermo‐stabilities and glass transition temperatures (Tg) are established by thermogravimetric and differential scanning calorimetry analyses (TGA and DSC), respectively. Biodegradation studies indicate that 28% of electrospun PCA achieved at 8 mL h−1 flow rate, 20 cm TCD and 25 kV applied voltage can be enzymatically degraded within 15 days. It is thus estimated that PCA with good electrospun and biodegradation abilities will favorable candidates for bio‐polyester applications.
中文翻译：
聚（1,4-环己烷二亚甲基乙炔二羧酸酯）的电纺：形貌，润湿性，热和生物降解行为的研究。
进行这项研究以评估基于聚（1,4-环己烷二亚甲基乙炔二羧酸乙二酯）（PCA）的薄膜和纤维的生物降解和热特性。PCA的特征在于傅立叶变换红外（FT‐IR）和质子核磁共振（1H-NMR）光谱学和凝胶渗透色谱法（GPC）。PCA的无珠纤维是通过在环境条件下首次从溶液中进行电纺丝而获得的。通过比较非电纺PCA，研究了施加电压和吸头到集电极距离（TCD）对纤维各种性质的影响，如形态，润湿性，热和生物降解性。通过扫描电子显微镜（SEM）阐明了电纺样品的形貌和平均频率分布。通过水接触角（WCA）测量来确定研究样品的润湿性，而热稳定性和玻璃化转变温度（T g分别由热重分析和差示扫描量热分析（TGA和DSC）确定。生物降解研究表明，在8 mL h -1流速，20 cm TCD和25 kV施加电压下，可实现28％的电纺PCA在15天内被酶降解。因此，据估计具有良好的电纺和生物降解能力的PCA将成为生物聚酯应用的理想候选者。
更新日期：2020-12-07
中文翻译：
聚（1,4-环己烷二亚甲基乙炔二羧酸酯）的电纺：形貌，润湿性，热和生物降解行为的研究。
进行这项研究以评估基于聚（1,4-环己烷二亚甲基乙炔二羧酸乙二酯）（PCA）的薄膜和纤维的生物降解和热特性。PCA的特征在于傅立叶变换红外（FT‐IR）和质子核磁共振（1H-NMR）光谱学和凝胶渗透色谱法（GPC）。PCA的无珠纤维是通过在环境条件下首次从溶液中进行电纺丝而获得的。通过比较非电纺PCA，研究了施加电压和吸头到集电极距离（TCD）对纤维各种性质的影响，如形态，润湿性，热和生物降解性。通过扫描电子显微镜（SEM）阐明了电纺样品的形貌和平均频率分布。通过水接触角（WCA）测量来确定研究样品的润湿性，而热稳定性和玻璃化转变温度（T g分别由热重分析和差示扫描量热分析（TGA和DSC）确定。生物降解研究表明，在8 mL h -1流速，20 cm TCD和25 kV施加电压下，可实现28％的电纺PCA在15天内被酶降解。因此，据估计具有良好的电纺和生物降解能力的PCA将成为生物聚酯应用的理想候选者。
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