热带作物学报2011，Vol.32Issue(7)：1364-1371,8.DOI:10.3969/j.issn.1000-2561.2011.07.035
不同制备工艺的天然橡胶裂解色谱-质谱分析
Pyrolysis GC-MS Study of Natural Rubber for Different Preparative Processes
摘要
Abstract
The natural rubber (NR) samples, prepared by acetic acid coagulation of fresh latex, microbial rapad coagulation of fresh latex, microbial coagulation of fresh latex mixed with ethanolamine and natural coagulation of fresh latex with protease, referred to as NR-1, NR-2, NR-3 and NR-4 raw rubbers, were analyzed using a py-GC/MS method. The results showed that the major degradation product of the four NR raw rubber samples was 1-methyl-4- (methylethenyl) cyclohexene along with 1, 3-pentadiene, (E) - (monomer) and groupings of compounds containing 15 and 20 carbon atoms (three and four monomers) units in the pyrolysate at 550 t. In addition, NR-1 raw rubber also generated 2-methyl-l,3-butadiene (monomer); NR-3 and NR-1 raw rubbers both contained a small amount of heterocyclic with nitrogen atom, hydroxyl and carbonyl oxygen; the structure of NR-2 was relatively simple; while NR-4 contained chloroformyloxy- and carbonyl oxygen, and so on.关键词
NR/制备工艺/裂解气相色谱-质谱/结构分析Key words
NR/Preparative processes/Pyrolysis-gas chromatography/mass spectrometry/Structure analysis分类
化学化工引用本文复制引用
梁悦,黄茂芳,曾宗强..不同制备工艺的天然橡胶裂解色谱-质谱分析[J].热带作物学报,2011,32(7):1364-1371,8.基金项目
公益性行业(农业)科研专项经费资助项目(No.nyhyzx07-033-6) （农业）
海南省自然科学基金资助项目(No.807047). （No.807047）
