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一步法合成端基功能化氢化丁腈橡胶：功能化复分解聚合与氢化的结合

One-step Synthesis of End-Functionalized Hydrogenated Nitrile-Butadiene Rubber by Combining the Functional Metathesis with Hydrogenation.

机构信息

School of science North University of China Jiancaoping District of Taiyuan City Shanxi Province China.

Jinjiao high-tech (Shanghai) co. LTD Jianchuan Road Cangyuan Technology Park Shanghai China.

出版信息

ChemistryOpen. 2020 Mar 23;9(3):374-380. doi: 10.1002/open.201900369. eCollection 2020 Mar.

DOI:10.1002/open.201900369
PMID:32211282
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7087459/
Abstract

End-functionalized hydrogenated polymers obtained from nitrile-butadiene rubber (NBR) yield new materials with suitable properties for a number of applications as sealing material and adhesives. We investigated the one-step synthesis of ester end-functionalized hydrogenated nitrile-butadiene rubber (EF-HNBR) by combining the functional metathesis with the hydrogenation of NBR in the presence of the 2 generation Grubbs catalyst and a functionalized olefin as a chain transfer agent (CTA). We established the operating conditions for the effective production of saturated functional polymers with a high degree of hydrogenation, high chemo-selectivity and moderate molecular weight. The structures of the products were confirmed by FT-IR and H-NMR spectroscopy, rubber molecular weight, and distribution determined by using gel permeation chromatography (GPC); their thermal properties were determined by thermo-gravimetric analysis (TGA) and different scanning calorimetry (DSC).

摘要

由丁腈橡胶（NBR）得到的端基功能化氢化聚合物，作为密封材料和粘合剂，为许多应用提供了具有合适性能的新材料。我们通过在 2 代 Grubbs 催化剂和官能化烯烃作为链转移剂（CTA）的存在下，将功能化的复分解反应与 NBR 的氢化结合起来，研究了酯基端基功能化氢化丁腈橡胶（EF-HNBR）的一步合成。我们确定了有效生产具有高氢化度、高化学选择性和中等分子量的饱和功能聚合物的操作条件。通过傅里叶变换红外光谱（FT-IR）和 H-NMR 光谱、使用凝胶渗透色谱（GPC）测定的橡胶分子量和分布，确认了产物的结构；通过热重分析（TGA）和差示扫描量热法（DSC）确定了它们的热性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/ecddba056b93/OPEN-9-374-g005.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/93dd6ad2f0b7/OPEN-9-374-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/0187f8eb1698/OPEN-9-374-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/386440054509/OPEN-9-374-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/ecddba056b93/OPEN-9-374-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/5b70191083d9/OPEN-9-374-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/611a94a8e283/OPEN-9-374-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/642f87009f13/OPEN-9-374-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/ff24d460c504/OPEN-9-374-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/11df2b58e89a/OPEN-9-374-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/93dd6ad2f0b7/OPEN-9-374-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/0187f8eb1698/OPEN-9-374-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/386440054509/OPEN-9-374-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/464b/7087459/ecddba056b93/OPEN-9-374-g005.jpg

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