江汉大学学报(自然科学版)
江漢大學學報(自然科學版)
강한대학학보(자연과학판)
JOURNAL OF JIANGHAN UNIVERSITY(NATURAL SCIENCES)
2014年
5期
5-9
,共5页
蔡少君%宋琳%刘学清%刘继延
蔡少君%宋琳%劉學清%劉繼延
채소군%송림%류학청%류계연
双酚A(BPA)%碳酸二苯酯(DPC)%亚磷酸三苯酯%含磷聚碳酸酯%熔融缩聚
雙酚A(BPA)%碳痠二苯酯(DPC)%亞燐痠三苯酯%含燐聚碳痠酯%鎔融縮聚
쌍분A(BPA)%탄산이분지(DPC)%아린산삼분지%함린취탄산지%용융축취
bisphenol A(BPA)%diphenyl carbonate(DPC)%triphenyl phosphite%phosphorus-con-taining polycarbonate%melt polycondensation
以双酚A(BPA)、碳酸二苯酯(DPC)和亚磷酸三苯酯为原料,分别以氢氧化锂(LiOH)和乙酸锂(Li?Ac)为催化剂,通过熔融酯交换法合成得到含磷聚碳酸酯。分别通过红外光谱仪、凝胶渗透色谱仪、示差扫描量热仪和热重分析仪对所得产物结构、分子量及分子量分布、玻璃化温度和热稳定性进行了表征和测定。结果表明,反应5.5 h,LiOH催化体系所得产物数均分子量为8700 g/mol,分子量分布系数为4.27,玻璃化温度为115.09℃,700℃时残炭率为25.51%;LiAc催化体系所得产物数均分子量为8000 g/mol,分子量分布系数为9.36,玻璃化温度为109.91℃,700℃时残炭率为24.11%。
以雙酚A(BPA)、碳痠二苯酯(DPC)和亞燐痠三苯酯為原料,分彆以氫氧化鋰(LiOH)和乙痠鋰(Li?Ac)為催化劑,通過鎔融酯交換法閤成得到含燐聚碳痠酯。分彆通過紅外光譜儀、凝膠滲透色譜儀、示差掃描量熱儀和熱重分析儀對所得產物結構、分子量及分子量分佈、玻璃化溫度和熱穩定性進行瞭錶徵和測定。結果錶明,反應5.5 h,LiOH催化體繫所得產物數均分子量為8700 g/mol,分子量分佈繫數為4.27,玻璃化溫度為115.09℃,700℃時殘炭率為25.51%;LiAc催化體繫所得產物數均分子量為8000 g/mol,分子量分佈繫數為9.36,玻璃化溫度為109.91℃,700℃時殘炭率為24.11%。
이쌍분A(BPA)、탄산이분지(DPC)화아린산삼분지위원료,분별이경양화리(LiOH)화을산리(Li?Ac)위최화제,통과용융지교환법합성득도함린취탄산지。분별통과홍외광보의、응효삼투색보의、시차소묘량열의화열중분석의대소득산물결구、분자량급분자량분포、파리화온도화열은정성진행료표정화측정。결과표명,반응5.5 h,LiOH최화체계소득산물수균분자량위8700 g/mol,분자량분포계수위4.27,파리화온도위115.09℃,700℃시잔탄솔위25.51%;LiAc최화체계소득산물수균분자량위8000 g/mol,분자량분포계수위9.36,파리화온도위109.91℃,700℃시잔탄솔위24.11%。
Phosphorus-containing polycarbonate was synthesized through melt-polycondensation with bisphenol A,diphenyl carbonate,triphenyl phosphite as raw materials and LiOH/LiAc as cata?lysts. The structure,molecular weight and molecular weight distribution,glass transition tempera?ture and thermal stability of the products were characterized with infrared spectroscopy,gel perme?ation chromatography,differential scanning calorimetry and thermal gravimetric analysis,respec?tively. Phosphorus-containing polycarbonates with Mn=8 700 g/mol,PDI=4. 27,tg=115. 09 ℃, 700 ℃ carbon residue of 25. 51% and Mn=8 000 g/mol,PDI=9. 36,tg=109. 91 ℃,700 ℃ carbon residue of 24. 11%were obtained by the reaction catalyzed with LiOH and LiAc,respectively.