Annealing Behavior of the Novel Morphology of Poly(butylene succinate) Lath-Shaped Single Crystals

作者：Duan Jiufang; Guo Baohua^*

来源：Journal of Polymer Science Part B: Polymer Physics , 2009, 47(15): 1492-1496.

DOI：10.1002/polb.21750

• atomic force microscopy (AFM)
• biodegradable
• poly(butylene succinate)
• polyesters
• single crystal
• thermal properties

Lamellar single crystals of poly(butylene succinate) (PBS) with novel morphologies were prepared from a chloroform/methanol solution by self-seeding methods. Crystal structures and morphologies were investigated by means of atomic force microscopy (AFM). Lath-shaped crystal and hexagonal-shaped crystals coexist in one PBS single crystal and this has a lamellar thickness of around 5-6 nm as determined by AFM. The thickening of lamellae from 5-6 to 7-9 nm occurred during heating from 41 to 84 degrees C. In situ temperature-controlled AFM observations demonstrated that the lath-shaped crystal sections melted first and then the hexagonal sections while the edge of the single crystals remained regular during annealing.

• 出版日期2009-8-1
• 单位清华大学