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| 遥爪型液体天然橡胶的合成与表征 | |
| 引用本文： | 从琴琴,廖双泉,杨晓红,张哲,谢贵水.遥爪型液体天然橡胶的合成与表征[J].合成化学,2012,20(4):458-461,478. |
| 作者姓名： | 从琴琴 廖双泉 杨晓红 张哲 谢贵水 |
| 作者单位： | 1. 海南大学农学院,海南海口,570228 2. 海南大学材料与化工学院,海南海口,570228 3. 中国热带农业科学院橡胶研究所,海南儋州,571737 |
| 基金项目： | 海南省自然科学基金资助项目，海南大学基金资助项目，中国热带农业科学院橡胶研究所基本科研业务费专项 |
| 摘 要： | 以天然橡胶(NR)为原料,经环氧化反应在NR分子链上引入环氧基制得环氧化天然橡胶(1);1经裂解反应合成了端羰基液体天然橡胶(2);对2进行改性得到端羟基液体天然橡胶(3),其结构经1H NMR和IR表征。探讨了反应温度、时间、氧化剂用量和环氧化程度对2的黏均分子量(M珚η)的影响。结果表明,延长反应时间、升高温度和增加氧化剂用量均可有效降低2的M珚η;1的环氧化程度对2的M珚η具有决定性作用,可通过调节环氧化程度实现2的M珚η的可控性。 |
| 关 键 词： | 液体天然橡胶 遥爪型 合成 表征 黏均分子量 |
Synthesis and Characterization of Telechelic Liquid Natural Rubber |
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| CONG Qin-qin , LIAO Shuang-quan , YANG Xiao-hong , ZHANG Zhe , XIE Gui-shui.Synthesis and Characterization of Telechelic Liquid Natural Rubber[J].Chinese Journal of Synthetic Chemistry,2012,20(4):458-461,478. | |
| Authors: | CONG Qin-qin LIAO Shuang-quan YANG Xiao-hong ZHANG Zhe XIE Gui-shui |
| Institution: | 2(a.College of Agriculture;b.College of Materials and Chemical Engineering,1.Hainan University,Haikou 570228, China;2.Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences,Danzhou 571737,China) |
| Abstract: | Carbonyl-telechelic liquid natural rubber(2) was synthesized from natural rubber(NR) by modification of introducing epoxy,then reaction with H5IO6·2H2O.Hydroxyl-telechelic liquid natural rubber(3) was obtained by chemical modification of 2.The tructures were characterized by 1H NMR and IR.The effects of reaction temperature,amount of oxidant and degree of epoxidation viscosity-average relative molecular mass(η) of 2 were investigated.The results showed that η of 2 were decreased with the increase of reaction temperature,time and oxidize amount.The degree of epoxidation of 1 played a decisive role in the η of 2,and through the control of the degree of epoxidation of 1 realized the η controllable. |
| Keywords: | liquid natural rubber telechelic synthesis characterization viscosity-average relative molecular mass |
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