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用于质子交换膜的部分可再生油酸基离聚物的合成与表征

Synthesis and Characterization of Partially Renewable Oleic Acid-Based Ionomers for Proton Exchange Membranes.

作者信息

Corona-García Carlos, Onchi Alejandro, Santiago Arlette A, Martínez Araceli, Pacheco-Catalán Daniella Esperanza, Alfonso Ismeli, Vargas Joel

机构信息

Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex Hacienda de San José de la Huerta, C.P. 58190 Morelia, Michoacán, Mexico.

Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex Hacienda de San José de la Huerta, C.P. 58190 Morelia, Michoacán, Mexico.

出版信息

Polymers (Basel). 2020 Dec 30;13(1):130. doi: 10.3390/polym13010130.

DOI:10.3390/polym13010130
PMID:33396908
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7794934/
Abstract

The future availability of synthetic polymers is compromised due to the continuous depletion of fossil reserves; thus, the quest for sustainable and eco-friendly specialty polymers is of the utmost importance to ensure our lifestyle. In this regard, this study reports on the use of oleic acid as a renewable source to develop new ionomers intended for proton exchange membranes. Firstly, the cross-metathesis of oleic acid was conducted to yield a renewable and unsaturated long-chain aliphatic dicarboxylic acid, which was further subjected to polycondensation reactions with two aromatic diamines, 4,4'-(hexafluoroisopropylidene)bis(-phenyleneoxy)dianiline and 4,4'-diamino-2,2'-stilbenedisulfonic acid, as comonomers for the synthesis of a series of partially renewable aromatic-aliphatic polyamides with an increasing degree of sulfonation (DS). The polymer chemical structures were confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (H, C, and F NMR) spectroscopy, which revealed that the DS was effectively tailored by adjusting the feed molar ratio of the diamines. Next, we performed a study involving the ion exchange capacity, the water uptake, and the proton conductivity in membranes prepared from these partially renewable long-chain polyamides, along with a thorough characterization of the thermomechanical and physical properties. The highest value of the proton conductivity determined by electrochemical impedance spectroscopy (EIS) was found to be 1.55 mS cm at 30 °C after activation of the polymer membrane.

摘要

由于化石储备的持续枯竭，合成聚合物的未来可用性受到影响；因此，寻求可持续且环保的特种聚合物对于确保我们的生活方式至关重要。在这方面，本研究报告了使用油酸作为可再生资源来开发用于质子交换膜的新型离聚物。首先，进行油酸的交叉复分解反应以生成一种可再生的不饱和长链脂肪族二羧酸，该二羧酸进一步与两种芳香族二胺，即4,4'-（六氟异丙基）双（-苯撑氧基）二苯胺和4,4'-二氨基-2,2'-二苯乙烯二磺酸，作为共聚单体进行缩聚反应，以合成一系列磺化度（DS）不断增加的部分可再生的芳香-脂肪族聚酰胺。通过傅里叶变换红外光谱（FTIR）和核磁共振光谱（H、C和F NMR）对聚合物的化学结构进行了确认，结果表明通过调整二胺的进料摩尔比可以有效地调整DS。接下来，我们对由这些部分可再生的长链聚酰胺制备的膜进行了离子交换容量、吸水率和质子传导率的研究，并对其热机械和物理性能进行了全面表征。在聚合物膜活化后，通过电化学阻抗谱（EIS）测定的质子传导率的最高值在30℃时为1.55 mS cm。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/90095f358c00/polymers-13-00130-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/6ca7149bc3c5/polymers-13-00130-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/58b239b533c3/polymers-13-00130-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/7d944ee23e53/polymers-13-00130-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/955b9eca60c0/polymers-13-00130-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/898d7b7b479f/polymers-13-00130-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/7db479bae0b9/polymers-13-00130-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/383eb9fc1b98/polymers-13-00130-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/a4bbadf0f164/polymers-13-00130-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/f87b4acfbda0/polymers-13-00130-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/90095f358c00/polymers-13-00130-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/6ca7149bc3c5/polymers-13-00130-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/58b239b533c3/polymers-13-00130-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/7d944ee23e53/polymers-13-00130-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/955b9eca60c0/polymers-13-00130-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/898d7b7b479f/polymers-13-00130-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/7db479bae0b9/polymers-13-00130-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/383eb9fc1b98/polymers-13-00130-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/a4bbadf0f164/polymers-13-00130-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/f87b4acfbda0/polymers-13-00130-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/de0f/7794934/90095f358c00/polymers-13-00130-g008.jpg

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