Crystalline hetero-stereocomplexed polycarbonates produced from amorphous opposite enantiomers having different chemical structures.
Stereocomplexation is the stereoselective interaction between two opposite enantiomeric polymers through an interlocked orderly assembly. Most studies focus on the stereocomplex formation from the crystalline opposite enantiomers having the identical structure; nevertheless, rare examples were reported regarding the crystalline stereocomplexes from enantiomeric polymers having different chemical structures. Herein we show a strategy for polymer orderly assembly through the formation of crystalline hetero-stereocomplexed polymeric materials by the cocrystallization of amorphous isotactic polycarbonates with different chemical structures and opposite configurations. The behaviors in the crystalline state are significantly different from that of the component enantiomeric polymers or their homo-stereocomplexes. This study is expected to open up a new way to prepare various semicrystalline materials having a wide variety of physical properties and degradability.
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 (China).
Ye
Y
Liu
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 (China).
Meng
M
Wang
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 (China).
Wei-Min
WM
Ren
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 (China).
Yue-Chao
YC
Xu
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 (China). xblu@dlut.edu.cn.
Xiao-Bing
XB
Lu
D002152:Calorimetry, Differential Scanning; D002245:Carbon Dioxide / Q000737:chemistry; D003460:Crystallization; D004852:Epoxy Compounds / Q000737:chemistry; D011076:Polycarboxylate Cement / Q000737:chemistry*; D013237:Stereoisomerism
D004852:Epoxy Compounds; D011076:Polycarboxylate Cement; D002245:Carbon Dioxide; C005506:polycarbonate
carbon dioxide; cocrystallization; meso-epoxides; polycarbonates; polymer assembly