摘要
采用中红外(MIR)光谱,开展了医用胶带基材(主要为乙烯–醋酸乙烯酯共聚物,简称基材)的结构表征。实验发现,基材的红外吸收模式主要包括νas(CH_(3)–基材结构)、νas(CH_(2)–基材结构)、νs(CH_(3)–基材结构)、νs(CH_(2)–基材结构)、ν(C=O–基材结构)、δ(CH_(2)–基材结构)、δas(CH_(3)–基材结构)、δs(CH_(3)–基材结构)和ρ(CH_(2)–基材结构)。采用变温中红外(TD–MIR)光谱进一步开展了基材的热变性研究,发现随测定温度的升高,基材中主要官能团对应的红外吸收频率及吸收强度均有明显改变。
The structure of medical tape substrate(mainly being ethylene-vinyl acetate copolymer,substrate for short) was characterized using mid-infrared(MIR) spectrum. It is found by the experiments that the infrared absorption modes of the substrate mainly include νas(CH_(3)–substrate structure), νas(CH_(2)–substrate structure), νs(CH_(3)–substrate structure), νs(CH_(2)–substrate structure), ν(C=O–substrate structure),δ(CH_(2)–substrate structure), δas(CH_(3)–substrate structure), δs(CH_(3)–substrate structure) and ρ(CH_(2)–substrate structure). The thermal denaturation of the substrate was further investigated using temperature-dependent mid-infrared(TD-MIR) spectrum. It is found that the infrared adsorption frequencies and absorption intensities corresponding to the main functional groups in the substrate change significantly with the increase of the determined temperature.
作者
郭子祺
于佳琳
常美玲
马星怡
张美环
于宏伟
Guo Ziqi;Yu Jialin;Chang Meiling;Ma Xingyi;Zhang Meihuan;Yu Hongwei(School of Chemical Technology,Shijiazhuang University,Shijiazhuang 050035,China;Hebei Provincial Anesthetic Technology Innovation Center,Shijiazhuang 050035,China)
出处
《化学推进剂与高分子材料》
CAS
2023年第2期70-75,共6页
Chemical Propellants & Polymeric Materials
基金
河北省一流本科专业建设项目(化学工程与工艺专业)
河北省麻醉药技术创新中心项目(SG2019010)。
关键词
医用胶带基材
乙烯–醋酸乙烯酯共聚物
中红外光谱
变温中红外光谱
medical tape substrate
ethylene-vinyl acetate copolymer
mid-infrared spectrum
temperature-dependent mid-infrared spectrum
