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Design of a Cross-linked PTHF-Based Network as an Oil/Organic Solvent Sorbent
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-23 , DOI: 10.1021/acs.iecr.0c04310 Ilker Yati 1 , Koksal Karadag 1 , Hayal Bulbul Sonmez 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-23 , DOI: 10.1021/acs.iecr.0c04310 Ilker Yati 1 , Koksal Karadag 1 , Hayal Bulbul Sonmez 1
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Novel effective oil/organic solvent sorbents were designed and comprised entirely from polytetrahydrofuran (PTHF)-based networks in a two-step approach: (1) preparing PTHF-based macro-cross-linkers and (2) cross-linking of PTHF polymers using the prepared PTHF-based macro-cross-linkers. With this approach, different molecular weights of hydroxy-functional PTHF polymers were turned into ethoxysilane-functional macro-cross-linkers by the modification of hydroxyl groups of PTHF polymers with 3-(triethoxysilyl)propyl isocyanate. Then, the prepared ethoxysilane-functional macro-cross-linkers were condensed with hydroxy-functional PTHF polymers to synthesize PTHF-based networks as oil/organic solvent sorbents. The synthesized PTHF-based sorbents demonstrated superior absorption properties in various oils and organic solvents such as dichloromethane, tetrahydrofuran, benzene, toluene, ethylbenzene, xylene, methyl tertiary butyl ether (MTBE), gasoline, and crude oil. The recovery of the sorbents after repeating the application for the absorption of dichloromethane and MTBE is essential, and they can be reused effectively for at least 50 days without any capacity loss. All the synthesized PTHF-based sorbents depicted high thermal stability. The characterization of the macro-cross-linkers and PTHF-based sorbents were determined by using 1H, 13C, and 29Si nuclear magnetic resonances and Fourier transform infrared spectroscopies. Thermal characteristics of the sorbents were identified by thermogravimetric analysis and differential scanning calorimetry. Absorption kinetics of the sorbents were further analyzed using pseudo-kinetic models and an intraparticle diffusion model.
中文翻译：
基于交联的基于PTHF的油/有机溶剂吸收剂的设计
设计了新型有效的油/有机溶剂吸附剂，该吸附剂完全由基于聚四氢呋喃（PTHF）的网络分两步组成：（1）制备基于PTHF的大分子交联剂，以及（2）使用PTHF聚合物进行交联制备的基于PTHF的大分子交联剂。通过这种方法，通过用3-（三乙氧基甲硅烷基）丙基异氰酸酯修饰PTHF聚合物的羟基，将不同分子量的羟基官能的PTHF聚合物转变为乙氧基硅烷官能的宏观交联剂。然后，将制备的乙氧基硅烷官能团的大分子交联剂与羟基官能团的PTHF聚合物缩合，以合成基于PTHF的网络，作为油/有机溶剂吸附剂。合成的基于PTHF的吸附剂在各种油和有机溶剂（例如二氯甲烷，四氢呋喃，苯，甲苯，乙苯，二甲苯，甲基叔丁基醚（MTBE），汽油和原油。重复申请吸收二氯甲烷和MTBE的吸附剂的回收是必不可少的，它们可以有效地重复使用至少50天而不会损失任何容量。所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用 所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用 所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用1 H，13 C和29 Si核磁共振和傅里叶变换红外光谱。通过热重分析和差示扫描量热法鉴定了吸附剂的热特性。使用伪动力学模型和颗粒内扩散模型进一步分析了吸附剂的吸收动力学。
更新日期：2020-12-09
中文翻译：
基于交联的基于PTHF的油/有机溶剂吸收剂的设计
设计了新型有效的油/有机溶剂吸附剂，该吸附剂完全由基于聚四氢呋喃（PTHF）的网络分两步组成：（1）制备基于PTHF的大分子交联剂，以及（2）使用PTHF聚合物进行交联制备的基于PTHF的大分子交联剂。通过这种方法，通过用3-（三乙氧基甲硅烷基）丙基异氰酸酯修饰PTHF聚合物的羟基，将不同分子量的羟基官能的PTHF聚合物转变为乙氧基硅烷官能的宏观交联剂。然后，将制备的乙氧基硅烷官能团的大分子交联剂与羟基官能团的PTHF聚合物缩合，以合成基于PTHF的网络，作为油/有机溶剂吸附剂。合成的基于PTHF的吸附剂在各种油和有机溶剂（例如二氯甲烷，四氢呋喃，苯，甲苯，乙苯，二甲苯，甲基叔丁基醚（MTBE），汽油和原油。重复申请吸收二氯甲烷和MTBE的吸附剂的回收是必不可少的，它们可以有效地重复使用至少50天而不会损失任何容量。所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用 所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用 所有合成的基于PTHF的吸附剂都具有很高的热稳定性。大分子交联剂和基于PTHF的吸附剂的表征通过使用1 H，13 C和29 Si核磁共振和傅里叶变换红外光谱。通过热重分析和差示扫描量热法鉴定了吸附剂的热特性。使用伪动力学模型和颗粒内扩散模型进一步分析了吸附剂的吸收动力学。
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