十六醇分子结构及热变性研究  

Molecular Structure and Thermal Denaturation of Hexadecanol

作　　者：吉一帆 柴嘉欣 常利双 刘京婷 李阳 乔净 吴雨靓 于宏伟[1,2] Ji Yifan;Chai Jiaxin;Chang Lishuang;Liu Jingting;Li Yang;Qiao Jing;Wu Yuliang;Yu Hongwei(Shijiazhuang University College of Chemical Technology,Shijiazhuang,Hebei 050035,China;Anesthetic Technology Innovation Center of Hebei Province,Shijiazhuang,Hebei 050035,China)

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]河北省麻醉药技术创新中心,河北石家庄050035

出　　处：《塑料助剂》2024年第6期18-25,共8页Plastics Additives

基　　金：石家庄市麻醉药技术创新中心项目(2023);河北省生物制药国际联合中心项目(2023)。

摘　　要：采用中红外(MIR)光谱技术开展了十六醇分子结构研究。实验发现,十六醇分子结构红外吸收模式主要包括OH基团伸缩振动模式(νOH-十六醇)、CH_(3)基团不对称伸缩振动红外吸收模式(ν_(asCH_(3)-十六醇))、CH_(2)基团不对称伸缩振动红外吸收模式(ν_(asCH_(2)-十六醇))、CH_(3)基团对称伸缩振动红外吸收模式(ν_(sCH_(3)-十六醇))、CH_(2)基团对称伸缩振动红外吸收模式(ν_(sCH_(2)-十六醇))、CH_(2)基团弯曲振动模式(δ_(CH_(2)-十六醇))、CH_(3)基团对称弯曲振动模式(δ_(sCH_(3)-十六醇))、CH_(2)基团面外摇摆振动模式(ω_(CH_(2)-十六醇))和CH_(2)基团面内摇摆振动模式(_(ρCH_(2)-十六醇))。采用变温中红外(MIR)光谱,进一步开展了温度变化对十六醇分子结构影响的研究。研究发现:在303~393 K的温度范围内,随着测定温度的升高,十六醇分子主要官能团对应的红外吸收频率和强度都有明显的改变,并进一步对其热变性机理进行了研究。The molecular structure of hexadecanol was studied by mid infrared(MIR)spectroscopy.It is found that the infrared absorption modes of hexadecanol molecular structure mainly include OH group stretching vibration mode(ν_(OH-hexadecanol)),CH_(3)group asymmetric stretching vibration infrared absorption mode(ν_(_(asCH_(3)-hexadecanol))),CH_(2)group asymmetric stretching vibration infrared absorption mode(ν_(asCH_(2)-hexadecanol)),CH_(3)group symmetrical stretching vibration infrared absorption mode(ν_(sCH_(3)-hexadecanol)),CH_(2)group symmetrical stretching vibration infrared absorption mode(ν_(s CH2-hexadecanol)),CH_(2)group bending vibration mode(δ_(CH_(2)),CH_(3)group symmetrical bending vibration mode(δ_(sCH_(3)-hexadecanol)),CH_(2)group out of plane rocking vibration mode(ω_(CH_(2)-hexadecanol)),CH_(2)group in plane rocking vibration mode(ρ_(CH2-hexadecanol)).The influence of temperature change on the molecular structure of hexadecanol was further studied by using temperature varying MIR spectroscopy.Research has found that within the temperature range of 303-393 K,the infrared absorption frequency and intensity corresponding to the main functional groups of hexadecanol molecules have significantly changed with the measured temperature increased.Further research has been conducted on its thermal denaturation mechanism.

关 键 词：十六醇 中红外光谱 变温中红外光谱 结构 热变性 

分 类 号：O657.33[理学—分析化学] TQ223.127[理学—化学]