不同产地蒲公英橡胶的组分和结构初探

郑加刚; 张学超; 王浩志; 张小珂; 赵艳芳; 廖小雪

doi:10.14028/j.cnki.1003-3726.2024.24.202

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不同产地蒲公英橡胶的组分和结构初探

研究论文 | 更新时间：2024-11-20

- 不同产地蒲公英橡胶的组分和结构初探
- Study on the Composition and Structure of Taraxacum koksaghyz Rubber from Different Origins
- 高分子通报 2024年37卷第11期页码：1589-1596
- 作者机构：
  
  1.海南大学材料科学与工程学院，海口 570228
  2.伊犁哈萨克自治州农业科学研究所，伊宁 835100
- 作者简介：
  
  *廖小雪，E-mail: liaoxx26@163.com
- 基金信息：
  
  海南省科技项目(ZDYF2022XDNY209);海南省自然科学基金(521RC1039);国家重点研发计划项目课题(2022YFD2301203);中央级公益性科研院所基本科研业务费专项(1630122022006)
- DOI：10.14028/j.cnki.1003-3726.2024.24.202
  中图分类号：
- 纸质出版日期：2024-11-20，
  
  网络出版日期：2024-08-29，
  
  收稿日期：2024-07-11，
  
  录用日期：2024-08-06
- 稿件说明：
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郑加刚, 张学超, 王浩志, 张小珂, 赵艳芳, 廖小雪. 不同产地蒲公英橡胶的组分和结构初探. 高分子通报, 2024, 37(11), 1589–1596

Zheng, J. G.; Zhang, X. C.; Wang, H. Z.; Zhang, X. K.; Zhao, Y. F.; Liao, X. X. Study on the composition and structure of Taraxacum koksaghyz rubber from different origins. Polym. Bull. (in Chinese), 2024, 37(11), 1589–1596
郑加刚, 张学超, 王浩志, 张小珂, 赵艳芳, 廖小雪. 不同产地蒲公英橡胶的组分和结构初探. 高分子通报, 2024, 37(11), 1589–1596 DOI： 10.14028/j.cnki.1003-3726.2024.24.202.

Zheng, J. G.; Zhang, X. C.; Wang, H. Z.; Zhang, X. K.; Zhao, Y. F.; Liao, X. X. Study on the composition and structure of Taraxacum koksaghyz rubber from different origins. Polym. Bull. (in Chinese), 2024, 37(11), 1589–1596 DOI： 10.14028/j.cnki.1003-3726.2024.24.202.

摘要

三叶天然橡胶因其卓越的物理机械性能而被广泛应用于社会生产生活中，其在需求量较大和应用广泛的同时，仍面临着种植地有限、病虫害和高成本等问题。蒲公英橡胶作为当前最具发展潜力的产胶植物之一，研究不同种植地的蒲公英橡胶组分和结构对于解决天然橡胶资源紧缺具有重要意义。本文采用溶剂法和酶解法提取蒲公英橡胶，分析其杂质含量、氮含量、灰分含量、凝胶含量，以及塑性初值和塑性保持率等理化性质。同时，利用傅里叶变换红外光谱(FTIR)和核磁共振波谱(NMR)对三叶天然橡胶和蒲公英橡胶的结构进行表征。结果表明，用溶剂法提取的蒲公英橡胶中，新疆产的蒲公英橡胶杂质含量、灰分含量高于内蒙古产的，而氮含量、凝胶含量、塑性初值、塑性保持率则低于内蒙古产的。酶解法提取的橡胶中，新疆产的蒲公英橡胶灰分含量高于内蒙古产的，而杂质含量、氮含量、凝胶含量、塑性初值、塑性保持率均低于内蒙古产的；同种方法提取的不同产地的蒲公英橡胶分子量相差不大；不同提取方法和不同产地的蒲公英橡胶在结构上与天然橡胶相同，均为顺-1

4-聚异戊二烯。

Abstract

Hevea brasiliensis is widely used in societal production and daily life due to its excellent physical and mechanical properties. Despite its high demand and broad applications

it still faces limitations such as restricted cultivation areas

susceptibility to pests and diseases

and high costs.

Taraxacum koksaghyz

rubber

being one of the most promising rubber-producing plants

holds significant potential for optimizing cultivation and application through the study of its composition and structure from different growing regions. In this study

solvent extraction and enzymatic hydrolysis were employed to extract

Taraxacum koksaghyz

rubber

analyzing its impurity content

nitrogen content

ash content

gel content

plasticity initial value

and plasticity retention index. Fourier-transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy were used to characterize the structure of both Hevea brasiliensis rubber and

Taraxacum koksaghyz

rubber. Re

sults showed that for solvent-extracted rubber

Taraxacum koksaghyz

rubber from Xinjiang had higher impurity and ash content but lower nitrogen content

gel content

plasticity initial value

and plasticity retention index

compared to those from Inner Mongolia. For enzymatically hydrolyzed rubber

Taraxacum koksaghyz

rubber from Xinjiang had higher ash content but lower impurity content

nitrogen content

gel content

plasticity initial value

and plasticity retention index

compared to those from Inner Mongolia. The molecular weight of

Taraxacum koksaghyz

rubber from different origins

extracted by the same method

was similar

exceeding one million. The structure of

Taraxacum koksaghyz

rubber from different methods and origins was identical to that of natural rubber

being cis-1

4-polyisoprene.

关键词

蒲公英橡胶产地提取方法理化性质结构

Keywords

Taraxacum koksaghyz rubberOriginExtraction methodPhysicochemical propertiesStructure

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