Partially bio-based furyl-functionalized organosoluble poly(ether ether ketone)s,Polymer International

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Partially bio-based furyl-functionalized organosoluble poly(ether ether ketone)s
Polymer International ( IF 2.9 ) Pub Date : 2020-12-07 , DOI: 10.1002/pi.6160
Sachin S. Kuhire _{1,

2} , Aniket A. Talanikar ₁ , Bhausaheb V. Tawade ₁ , Samadhan S. Nagane _{1,

2} , Prakash P. Wadgaonkar _{1,

2}

Affiliation

A new series of partially bio-based (co)poly(ether ether ketone)s bearing pendent furyl groups was synthesized by nucleophilic aromatic substitution polycondensation of varying molar proportions of 4,4′-(furan-2-ylmethylene)bis(2-methoxyphenol) and bisphenol-A with 4,4′-difluorobenzophenone. The chemical structures, compositions and random nature of (co)poly(ether ether ketone)s were confirmed by NMR spectroscopy. Inherent viscosities and number-average molecular weights of the (co)poly(ether ether ketone)s were in the range 0.74–2.90 dL g⁻¹ and 33 500–46 300 g mol⁻¹, respectively, indicating the formation of reasonably high molecular weight polymers. (Co)poly(ether ether ketone)s were readily soluble in common organic solvents and could be cast into tough, transparent and flexible films from chloroform solutions. (Co)poly(ether ether ketone)s exhibited 10% weight loss and glass transition temperatures in the range 429–464 and 152–156 °C, respectively. A representative copoly(ether ether ketone) was crosslinked with 1,1′-(methylenedi-1,4-phenylene)bismaleimide via Diels–Alder reaction to form a crosslinked polymer which showed improved mechanical properties and was recycled twice without significant loss of mechanical properties. Diels–Alder/retro Diels–Alder reaction was demonstrated by studies of sol–gel transformation, solubility tests, DSC and stress–strain measurements. © 2020 Society of Chemical Industry

中文翻译：

部分生物基呋喃基官能化的有机可溶性聚（醚醚酮）

通过不同摩尔比例的 4,4'-(呋喃-2-基亚甲基)双 (2-甲氧基苯酚）和双酚 A 与 4,4'-二氟二苯甲酮。(共)聚(醚醚酮)的化学结构、组成和随机性质通过核磁共振光谱证实。（共）聚（醚醚酮）的固有粘度和数均分子量在 0.74-2.90 dL g ^-1和 33 500-46 300 g mol ^{-1 范围内}，分别表明形成了合理的高分子量聚合物。（共）聚（醚醚酮）易溶于常见的有机溶剂，可以从氯仿溶液中浇铸成坚韧、透明和柔韧的薄膜。(Co) 聚(醚醚酮)s 表现出 10% 的重量损失和玻璃化转变温度分别在 429–464 和 152–156 °C 的范围内。代表性的共聚（醚醚酮）通过 Diels-Alder 反应与 1,1'-（亚甲基二-1,4-亚苯基）双马来酰亚胺交联，形成交联聚合物，该聚合物显示出改善的机械性能，并且可回收两次而没有显着的机械损失。特性。Diels-Alder/retro Diels-Alder 反应通过溶胶-凝胶转化、溶解度测试、DSC 和应力-应变测量的研究得到证实。© 2020 化学工业协会

更新日期：2020-12-07

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