CAJ | 학술논문

制备了两种新型的分别含有以三苯胺为电子给体的偶氮类发色团作为特征活性官能团和3-呋喃甲酸及受保护的马来酰亚胺的可交联型聚合物体系.通过研究表明利用该制备方法,发色团在聚合物中的含量得到了极大的提高,分别达到32.1%(NLO1_P1)和44.4%(NLO1_P2).该聚合物体系以"Diels-Alder"[4+2]环加成反应作为其交联特征,具有高温非交联、低温交联的特点,其过程与以往的热交联型聚合物相反,可解决传统电光交联聚合物中存在的热交联对极化效率影响的问题并用热失重分析法(TGA)和差示扫描量热法(DSC)分析了这一过程.此外DA交联型聚合物,不需要引入额外的助交联剂,克服了传统热交联聚合物分离难的问题,最大程度的保证了材料的纯度.
제비료량충신형적분별함유이삼분알위전자급체적우담류발색단작위특정활성관능단화3-부남갑산급수보호적마래선아알적가교련형취합물체계.통과연구표명이용해제비방법,발색단재취합물중적함량득도료겁대적제고,분별체도32.1%(NLO1_P1)화44.4%(NLO1_P2).해취합물체계이"Diels-Alder"[4+2]배가성반응작위기교련특정,구유고온비교련、저온교련적특점,기과정여이왕적열교련형취합물상반,가해결전통전광교련취합물중존재적열교련대겁화효솔영향적문제병용열실중분석법(TGA)화차시소묘량열법(DSC)분석료저일과정.차외DA교련형취합물,불수요인입액외적조교련제,극복료전통열교련취합물분리난적문제,최대정도적보증료재료적순도.
Polymers NLO1_P1 and NLO1_P2 containing the new azo chromophore were designed and prepared, which possess crosslinking ability through retro-"Diels-Alder" and "Diels-Alder" reaction. Because the crosslinking groups of furan-capped maleimide and furan-3-carboxylic acid were designed covalently attaching to the two kinds of polymers NLO1_P1 and NLO1_P2, respectively, the chromophore content in the polymers were greatly increased (32.1% in NLO1_P1 and 44.4% in NLO1_P2).These polymer systems were crosslinking in low temperature (below 70 ℃) and non-crosslinking in high temperature (about 150 ℃). The crosslinking characteristic could resolve the problem "nonlinearity-stability tradeoff" which consists in the traditional crosslinking electro-optic polymer.The thermal stability and thermal reversible character of the network polymer were confirmed through thermal gravimetric analysis (TGA) and differential scanning calorimeter (DSC).