有机分光晶体季戊四醇的生长研究  

Growth of Organic Analysis Crystal Pentaerythritol(PET)

作　　者：赵玲燕[1] 潘建国[1] 崔玉杰[1] 罗虹[1] 娄丙谦[1] 

机构地区：[1]宁波大学材料科学与化学工程学院,宁波市新型功能材料及其制备科学-省部共建国家重点实验室培育基地,宁波315211

出　　处：《人工晶体学报》2011年第6期1423-1428,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(61078055);浙江省重点科技创新团队(2009R50025-01);宁波大学王宽诚幸福基金

摘　　要：本文采用多次重结晶的方法提纯季戊四醇(PET)原料,用高效液相色谱进行分析研究。通过目测法和吊籽晶法,测定了PET生长的亚稳区宽度。研究了溶液的pH值、过热时间和过热温度等因素对溶液亚稳区和诱导期的影响。采用紫外-可见光谱、红外光谱研究了长时间高温下溶液被氧化的特性。用溶液降温法在2 L的生长槽中生长出30 mm×30 mm×30 mm的PET单晶体。Pure PET was obtained by repeated recrystallization. It was then analyzed by high performance liquid chromatography （HPLC）. The metastable area width has been determined by visual method and seeding crystal measurement. The influence of pH values ,overheating temperature and time on induction period and metastable areahave been studied . UV-Vis spectroscopy and infrared spectroscopy have been used to study solution oxidative properties on long-time high temperature. The single crystal of PET was grown with size of 30mm×30mm×30mm in 2 L container by the solution cooling method.

关 键 词：季戊四醇 分光晶体 晶体生长 溶液法 

分 类 号：O782[理学—晶体学]