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Herein, this work successfully synthesizes a flame\u2010retardant CEPPA\u2010DDA salt (CDS) with both good thermal stability and high reactivity by reacting 2\u2010carboxyethyl phenyl phosphonic acid (CEPPA) with 1,12\u2010dodecanediamine (DDA). Flame\u2010retardant polyamide 1210 (FRPA) is further prepared by copolymerizing the CDS, DDA, and sebacic acid (SEA). The test results show that the introduction of CDS can significantly improve the flame\u2010retardant properties of FRPA. Specifically, the flame\u2010retardant polyamide 1210 (FRPA\u20107) with 7 wt% CDS addition can reach V\u20100 grade according to UL\u201094 standard, accompanying limiting oxygen index value of 30.2% and tensile strength of 38.62\u00a0MPa. Compared with pure polyamide 1210, the peak heat release rate and total heat release rate of FRPA\u20107 reduce by 24.11% and 9.40%, respectively. This study provides a simple strategy to prepare flame\u2010retardant polyamides with high flame retardancy and good mechanical properties, which are expected to show great potentials in future industrial applications.<\/jats:p>","DOI":"10.1002\/marc.202200644","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T01:59:06Z","timestamp":1668995946000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Synthesis and Characterization of a New Copolymer Consisting of Polyamide 1210 and Reactive Phosphorus\u2212Nitrogen Flame\u2010Retardant"],"prefix":"10.1002","volume":"44","author":[{"given":"Lizheng","family":"Qin","sequence":"first","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shun","family":"Gong","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shikun","family":"Zhao","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiwen","family":"Cao","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianping","family":"Deng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1841-1556","authenticated-orcid":false,"given":"Kai","family":"Pan","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical Technology Beijing 100029 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,11,29]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/mren.201000017"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compscitech.2005.03.020"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/mame.200390017"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/app.22261"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/app.24594"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10965-016-0985-6"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eurpolymj.2013.06.004"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.polymer.2018.05.018"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.3390\/polym7020316"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/C4RA02005G"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/pat.1833"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1080\/03602559.2011.603777"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1177\/0954008315572493"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clay.2018.02.021"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/app.32319"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.reactfunctpolym.2018.03.005"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/pat.1670"},{"key":"e_1_2_8_18_1","first-page":"65","volume":"27","author":"Tan S.","year":"2014","journal-title":"High Perform. 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