摘要
熔融共聚法制备了丙交酯/己内酯聚酯共聚物,采用FT-IR、1H-NMR和XRD等分析手段对聚酯共聚物进行了结构表征,确认合成了嵌段型聚酯共聚物。利用石英微晶天平(QCM-D)检测己内酯/丙交酯聚酯薄膜在天然海水中频率和耗散的变化,并用POM、AFM和SEM原位观察了水解过程中薄膜表面微观结构的变化,初步推断聚酯共聚物的水解过程。
Copolyesters of PCL/LA with e-caprolactone and L-lactide were synthesized by melt poly-merization. The structure of copolyestes was characterized by using FT-IR, 1H-NMR and XRD analyses. The frequency and dissipation variation of polyester films in seawater were detected by quartz crystal mi- crobalance with dissipation （QCM-D）. The change of film＇s surface morphology were observed by polariza-tion microscope （POM）, atomic force microscope （AFM） and scanning electron microscopy （SEM）. Thus the hydrolysis process of PCL/LA was inferred preliminarily.
出处
《涂料工业》
CAS
CSCD
北大核心
2012年第3期44-47,共4页
Paint & Coatings Industry
基金
国家重点基础研究发展计划(973计划)(YK090901)
关键词
丙交酯
己内酯
嵌段共聚物
天然海水
水解
L-Lactide
ε-Caprolactone
block copolymer
seawater
hydrolysis
