杯芳烃交联聚硅氧烷热稳定性能研究  

STUDY ON THE THERMAL STABILITY OF CALIXARENE CROSSLINKED POLYSILOXANES

作　　者：龚淑玲[1] 胡才仲[1] 王巍[1] 孟令芝[1] 陈远荫[1] 

机构地区：[1]武汉大学化学与分子科学学院,武汉430072

出　　处：《高分子学报》2006年第1期180-184,共5页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目(基金号20272044)

摘　　要：The calixarene crosslinked polysiloxanes were obtained by crosslinked (N-(β-aminoethyl)aminopropyl) modified silicon oil with 1,3-diglycidyl(calix[4]arene.)Their structures were characterized by infrared spectra and scanning electron microscopy.The thermal degradation behaviour of the calixarene crosslinked polysiloxanes with various content of calixarene under a nitrogen atmosphere was investigated by using thermogravimetry(TG),it showed that all the crosslinked polysiloxanes exhibited two-stage decomposition,the first decomposition peak was at about 391℃ and the second was at about 520℃,the ratio of the two fastest weight loss rates was varied with the content of calixarene.Under our experimental conditions,the calixarene crosslinked polysiloxane with 3% content of calixarene had the lowest rate of degradation during the first stage of decomposition.The thermal stability of calixarene crosslinked polysiloxanes was enhanced compared with that of (N-(β-aminoethyl)aminopropyl) modified silicon oil and 1,3-bis(2′,3′-epoxypropoxy)benzene crosslinked polysiloxane.The calixarene crosslinked polysiloxanes were obtained by crosslinked N-（β-aminoethyl）aminopropyl modified silicon oil with 1,3-diglycidyl calix[4] arene. Their structures were characterized by infrared spectra and scanning electron microscopy. various content of calixarene The thermal degradation behaviour of the calixarene crosslinked polysiloxanes with under a nitrogen atmosphere was investigated by using thermogravimetry （TG）, it showed that all the crosslinked polysiloxanes exhibited two-stage decomposition , the first decomposition peak was at about 391 ℃ and the second was at about 520℃, the ratio of the two fastest weight loss rates was varied with the content of calixarene. Under our experimental conditions, the calixarene crosslinked polysiloxane with 3 % content of calixarene had the lowest rate of degradation during the first stage of decomposition. The thermal stability of calixarene crosslinked polysiloxanes was enhanced compared with that of N-（β-aminoethyl）aminopropyl modified silicon oil and 1,3-bis （2＇, 3＇- epoxypropoxy） benzene crosslinked polysiloxane.

关 键 词：杯芳烃 聚硅氧烷 热稳定性 杯芳烃聚合物 

分 类 号：O631.41[理学—高分子化学]