伸缩振动(υ)是指原子沿键轴方向的伸长和缩短,振动时只有键长的变化而无键角的变化。
伸缩振动(stretching vibration )指原子间距离沿键轴方向的周期性变化。有对称伸缩振动和非对称伸缩振动两种形式。
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对称伸缩振动 symmetrical stretching vibration
不对称伸缩振动 asymmetrical stretching vibration
铁氧体磁致伸缩振动子 vibrocs
径向伸缩振动模 radial extension vibration mode
磁致伸缩振动发生器 [电子] magnetostrictive vibration generator
长度伸缩振动模式 length extension vibration mode
磁致伸缩振动台 magnetostrictive vibration generator system
径向伸缩振动模式 [电] radial extension vibration mode
伸缩振动的倍频吸收 overtone band
In the FTIR spectrum,there is no-C=C- stretching vibration absorption peak at 1680-1620 cm-1. From DSC analysis,the glass transition temperature(Tg)is identified as 37.6℃.
结果表明:傅立叶红外光谱(FT-IR)分析在 1680 cm~(-1)~1620 cm~(-1)处无 C=C 伸缩振动吸收峰出现,说明体系反应较彻底;差示扫描量热(DSC)分析得共聚物的玻璃化转变温度(Tg)为37.6℃。
参考来源 - 一种新型两亲性聚合物的合成研究·2,447,543篇论文数据,部分数据来源于NoteExpress
OH的伸缩振动谱带的水去卷积和高斯曲线拟合得到解决。
The OH stretching band of water has been resolved by deconvolution and Gaussian curve fitting.
H-O氢键的形成使复合物中水分子H-O键对称伸缩振动频率减小(红移)。
The H-O symmetric stretching modes of water in complexes are red-shifted relative to that of the monomer water.
研究了它们的介电常数,热电系数,厚度伸缩振动机电耦合系数及其温度依赖性。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
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