Multi-modal characterization of nanogram amounts of a photosensitive polymer
Multi-modal characterization of nanogram amounts of a photosensitive polymer
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纳克级光敏聚合物的多模态表征
DOI：
10.1063/1.4788740
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发表时间：
2013
影响因子：
4
通讯作者：
T. Thundat
中科院分区：
文献类型：
--
作者：
S. Kim;Dongkyu Lee;Minhyuk Yun;Namchul Jung;S. Jeon;T. Thundat
在这里，我们展示了使用微悬臂梁传感器同时表征聚乙烯肉桂酸乙烯酯(PVCN)的多模式方法。我们将纳米机械热分析与光热悬臂梁偏转光谱相结合，以识别紫外线(UV)照射引起的PVCN热力学和热力学性质随温度和UV照射时间的变化。证实了紫外光辐照导致PVCN的光交联化过程：杨氏模数和悬臂梁挠度的增大，纳米机械红外光谱的偏转滞后和C=C峰强度随紫外光照射时间的变化而减小。
Here, we demonstrate multi-modal approach of simultaneous characterization of poly(vinyl cinnamate) (PVCN) using a microcantilever sensor. We integrate nanomechanical thermal analysis with photothermal cantilever deflection spectroscopy for discerning ultraviolet (UV) exposure-induced variations in the thermodynamic and thermomechanical properties of the PVCN as a function of temperature and UV irradiation time. UV radiation-induced photo-cross-linking processes in the PVCN are verified with the increase of the Young's modulus and cantilever deflection as well as the decrease in the hysteresis of deflection and the intensity of C=C peak in the nanomechanical infrared spectrum as a function of UV irradiation time.
纳米机械悬臂梁上由前体胶体单层制成的聚合物薄膜的频率响应
影响因子：
5.5
作者：
Retsch;Gutmann;Koynov;Berger
通讯作者：
Berger