Citation: WANG Mingfang, JIA Qiangqiang, WANG Yuerong, ZHANG Hongyang, ZHANG Min, HU Ping. Determination of hydroxy terminated polybutadiene in the blends by liquid critical condition chromatography[J]. Chinese Journal of Chromatography, ;2020, 38(2): 238-243. doi: 10.3724/SP.J.1123.2019.03042 shu

Determination of hydroxy terminated polybutadiene in the blends by liquid critical condition chromatography

1.
Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China;
2.
Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China

Corresponding author: HU Ping, huping@ecust.edu.cn
Received Date: 30 March 2019

Fund Project: National Natural Science Foundation of China (No. 81973285).

A method based on liquid critical condition chromatography (LCCC) was established for the quantification of hydroxy-terminated polybutadiene (HTPB) in polymer blends. The critical conditions for HTPB were investigated using a C18 column as the stationary phase, and tetrahydrofuran (THF)-acetonitrile (ACN) or THF-water as the mobile phase. Irrespective of the relative molecular mass, HTPB was eluted under the critical conditions of THF-ACN (70.7:29.3, v/v) or THF-water (92:8, v/v). Under the optimal conditions, the HTPB exhibited satisfactory linearity in the range of 46.7-216.4 mg/L, with a correlation coefficient (r) of 0.997. The limit of detection reached 4.2 mg/L. The recoveries of HTPB from the prepared mixtures of HTPB and mineral oil ranged from 89.2% to 101.1%, with a relative standard derivation of less than 0.66% (n=6). This method was successfully applied to the quantitative analysis of HTPB in a commercial polyurethane adhesive, and 26.6% of HTPB was detected in the product. This LCCC method is simple, convenient, highly selective, and reliable for quality control and failure studies of formulated products.
- liquid critical condition chromatography(LCCC),
- hydroxy terminated polybutadiene(HTPB),
- adhesive,
- quantitative analysis
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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of hydroxy terminated polybutadiene in the blends by liquid critical condition chromatography

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com