Page 190 - 《精细化工》2020年 第10期
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第 37 卷第 10 期                            精   细   化   工                                 Vol.37, No.10
             2020 年 10 月                             FINE CHEMICALS                                 Oct.    2020


              橡塑助剂
                          4,4,4-三膦酸甲酯三苯胺的合成及应用



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                                                                       2*
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                                    杨旭锋 ,陈栋栋 ,职慧珍 ,杨锦飞
                 (1.  吕梁学院  化学化工系,山西  吕梁    033011;2.  南京师范大学  化学与材料科学学院,江苏  南京
                 210023)
                 摘要:以三苯胺为原料,通过亲电取代反应制备得到中间体 4,4,4–三碘代三苯胺(TITPA),该中间体与亚磷
                 酸三甲酯在 Pd(PPh 3 ) 2 Cl 2 催化下经 Arbuzov 重排得到目标产物 4,4,4–三膦酸甲酯三苯胺(TPTPA)。通过
                 1 HNMR、 CNMR、 PNMR、高分辨质谱和元素分析对目标产物进行了结构表征,并考察了催化剂种类与用量、
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                 反应温度、反应时间对目标化合物产率的影响。结果表明,最佳合成条件为:n〔Pd(PPh 3 ) 2 Cl 2 〕∶n(TITPA)=
                 0.18∶1.00,反应温度 150 ℃,反应时间 5 h。在该条件下,目标产物 TPTPA 的收率可达 82.5%。进一步地,将
                 TPTPA 用于 PVC 的阻燃改性。结果表明,当 TPTPA 添加量为 10%(以 PVC 树脂的质量为基准,下同),样品
                 的极限氧指数可达 29.6%、UL-94 垂直燃烧达 V-0 级,且力学性能良好。
                 关键词:膦酸酯;阻燃剂;4,4,4-三碘代三苯胺;Arbuzov 反应;橡塑助剂
                 中图分类号:TQ314.24      文献标识码:A      文章编号:1003-5214 (2020) 10-2120-05



                                    Synthesis and application of hexamethyl
                                 [nitrilotris(benzene-4,1-diyl)]tris(phosphonate)


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                               YANG Xufeng , CHEN Dongdong , ZHI Huizhen , YANG Jinfei
                 (1. Department of Chemistry & Chemical Engineering, Luliang University, Luliang 033001, Shanxi, China; 2. School
                 of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, Jiangsu, China)
                 Abstract: 4,4′,4′′-Nitrilotris(1-iodobenzene) (TITPA) was synthesized using triphenylamine as raw material
                 through electrophilic substitution reaction. Subsequently, a classic Arbuzov rearrangement reaction between
                 intermediate TITPA and trimethyl phosphite was performed in a catalytic amount of Pd(PPh 3) 2Cl 2 to obtain
                 hexamethyl[nitrilotris(benzene-4,1-diyl)]tris(phosphonate) (TPTPA). The target product was characterized
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                 by  HNMR,  CNMR,  PNMR,  HR-MS  and  elemental  analysis.  The  effects  of  catalyst  types,  catalyst
                 dosage , reaction temperature and reaction time on the yield of the target compound were investigated. The
                 results showed that the optimum conditions were obtained as follows: n[Pd(PPh 3) 2Cl 2]∶n(TITPA) = 0.18∶
                 1.00,  reaction  temperature  of  150 ℃,  reaction  time  of  5  h.  Under  these  conditions,  the  yield  of
                 hexamethyl[nitrilotris(benzene-4,1-diyl)]tris(phosphonate) could reach 82.5%. Subsequently, TPTPA as a
                 flame  retardant  was  used  for  flame  retardant  modification  of  PVC.  The  results  indicated  that  the
                 prepared sample with an additive amount of TPTPA of 10% (based on the mass of PVC resin, the same
                 below) had limited oxygen index of 29.6% and vertical combustion test of UL-94 up to V-0 level as
                 well as maintained excellent mechanical properties.
                 Key words: phosphonate; flame retardant; 4,4′,4′′-nitrilotris(1-iodobenzene); Arbuzov reaction; rubber and
                 plastics auxiliaries



                 橡胶、塑料、胶黏剂等高分子材料具有密度小、                         广泛应用于生产、生活、科研、国防等多个领域                     [1-3] ,
            韧性好、比强度高、耐疲劳性好等优异性能,现已                             为社会进步和科技发展作出了巨大贡献。然而,大


                 收稿日期:2020-04-30;  定用日期:2020-06-24; DOI: 10.13550/j.jxhg.20200364
                 基金项目:山西省高等学校科技创新项目(2019L0966、2019L0941);江苏省产业前瞻与共性关键技术竞争项目(BE2017165)
                 作者简介:杨旭锋(1988—),男,博士,讲师,E-mail:yangxufeng@llhc.edu.cn。联系人:职慧珍(1974—),女,副教授,E-mail:
                 zhihuizhen@163.com。
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