Immortal ring-opening polymerization of lactides with super high monomer to catalyst ratios initiated by zirconium and titanium complexes containing multidentate amino-bis(phenolate) ligands

2017 ◽  
Vol 41 (13) ◽  
pp. 5669-5677 ◽  
Author(s):  
Baolong Wang ◽  
Huanqin Zhao ◽  
Liying Wang ◽  
Junmin Sun ◽  
Yongfeng Zhang ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Titanium Complexes ◽  
Highly Active ◽  
Zirconium Complexes ◽  
Phenolate Ligands

Zirconium and titanium complexes containing amino-bis(phenolate) ligands were prepared. These complexes are highly active initiators for the ring-opening polymerization of lactide. And two zirconium complexes are highly active and excellent catalysts for immortal ring-opening polymerization of lactide.

Titanium complexes bearing amine bis(phenolate) ligands: Synthesis, structure and catalysis in ring-opening polymerization of lactide

2016 ◽  
Vol 31 (9) ◽  
pp. e3688
Author(s):  
Baolong Wang ◽  
Jianing Zhang ◽  
Huanqin Zhao ◽  
He Huang ◽  
Junpei Zheng ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Titanium Complexes ◽  
Phenolate Ligands

Sodium complexes bearing cavity-like conformations: a highly active and well-controlled catalytic system for macrolactone homo- and copolymerization

2021 ◽  
Vol 12 (13) ◽  
pp. 1957-1966
Author(s):  
Xinya Wang ◽  
Xiaohua Wang ◽  
Nuo Zhen ◽  
Jin Gu ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Catalytic System ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Highly Active ◽  
Sodium Complexes

Sodium complexes displaying cavity-like conformations and, therefore, suppressed transesterification during the ring-opening polymerization of pentadecalactone are disclosed herein.

Ring-opening polymerization of lactones by mono(cyclopentadienyl)titanium complexes

1995 ◽  
Vol 95 (1) ◽  
pp. 195-202 ◽  
Author(s):  
Jun Okuda ◽  
Thomas Kleinhenn ◽  
Peter König ◽  
Insa Taden ◽  
Silvana Ngo ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Titanium Complexes

scholarly journals Enolic Schiff Base Zinc Amide Complexes: Highly Active Catalysts for Ring-Opening Polymerization of Lactide and ε-Caprolactone

2018 ◽  
Vol 36 (10) ◽  
pp. 1123-1128 ◽  
Author(s):  
Chen-Yang Hu ◽  
Ran-Long Duan ◽  
Jing-Wei Yang ◽  
Shu-Jun Dong ◽  
Zhi-Qiang Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Highly Active

Highly Active and Iso-Selective Catalysts for the Ring-Opening Polymerization of Cyclic Esters using Group 2 Metal Initiators

2017 ◽  
Vol 23 (39) ◽  
pp. 9319-9331 ◽  
Author(s):  
Jayeeta Bhattacharjee ◽  
Adimulam Harinath ◽  
Hari Pada Nayek ◽  
Alok Sarkar ◽  
Tarun K. Panda
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Esters ◽  
Highly Active ◽  
Group 2
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