具有磷杂菲和磷腈双效官能团的新型阻燃助剂的合成及表征

Preparation and characterization of hexa-(DOPO-hydroxymethyl phenoxy)-cyclotriphosphazene

采用两步法合成了一种具有磷腈和磷杂菲（DOPO）双效官能团的阻燃助剂六-（DOPO-羟甲基苯氧基）-环三磷腈（HAP-DOPO）。以六氯环三磷腈和对羟基苯甲醛为原料,通过亲核取代反应获得六-（4-醛基苯氧基）环三磷腈（HAP）,进一步与9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物（DOPO）加成反应制得HAP-DOPO。采用红外光谱和核磁1HNMR证实了其结构。通过DSC和TGA测试,结果表明HAP-DOPO有明显的玻璃化转变温度（Tg=82℃）,熔点（Tm）186℃,初始分解温度在200℃以上,在氮气氛围下600℃的残炭量达到了46.7%,成炭阻燃性能优良。

Hexa-（DOPO-hydroxymethylphenoxy）-cyclotriphosphazene（HAP-DOPO）,A novel fire retardant additive with double-effect functional group of phosphazene and phosphaphenanthrene groups,was synthesized from hexachlorocyclotriphosphazene,4-hydroxybenzaldehyde and 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide（DOPO） by a two step reaction.Its structure was confirmed by FT-IR,1HNMR and thermal properties was investigated by differential scanning calorimeter（DSC）,thermogravimetry（TGA）.HAP-DOPO showed an obvious glass-transition temperature and melting point（Tg=82℃,Tm=186℃）,TGA demonstrated that the onset decomposition temperature of HAP-DOPO was above 200℃.Furthermore,high char yields（46.7%） at 600℃ of HAP-DOPO indicated that the phosphorus nitrogen compound had excellent flame retardant and charring properties.