Oxyimides have gained wide interest in different applications because of radical generating properties, such as flame retardants in various polymers. As polyamide‐6 (PA6) is highly flammable and shows burning dripping during incineration the mentioned issues have to be overcome by the use of a flame retardant. All previously developed oxyimides already show these properties, but this is based on the ester structure with the consequence of transesterification/transamidation in polyesters/polyamides. In this work, a new class of oxyimides based on ether bonds is synthesized. Oxyimide ethers do not degrade PA6, only sometimes slightly increase MVR, and show excellent flame retardancy in PA6. Depending on the structure, UL 94 V‐0 can be reached with very low loadings. This makes oxyimide ethers an alternative to commonly used flame retardants for PA6.

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一类新的氧酰亚胺：氧酰亚胺醚及其作为阻燃剂的用途

氧酰亚胺由于产生自由基的性质，例如各种聚合物中的阻燃剂，在不同的应用中引起了广泛的兴趣。由于聚酰胺-6（PA6）高度易燃，并且在焚化过程中表现出燃烧滴落，因此必须通过使用阻燃剂来克服上述问题。所有以前开发的氧酰亚胺都已经显示出这些特性，但这是基于酯结构的，其结果是在聚酯/聚酰胺中进行酯交换/酰胺基转移。在这项工作中，合成了基于醚键的一类新的氧酰亚胺。氧酰亚胺醚不会降解PA6，只是有时会稍微提高MVR，并在PA6中显示出出色的阻燃性。根据结构，在非常低的负载下可以达到UL 94 V-0。这使得氧酰亚胺醚可以替代常用的PA6阻燃剂。