Organobase 1,1,3,3-Tetramethyl Guanidine Catalyzed Rapid Ring-opening Polymerization of α-Amino Acid N-carboxyanhydrides Adaptive to Amine, Alcohol and Carboxyl Acid Initiators

2021 ◽  
Author(s):  
Kai Li ◽  
Zheng Li ◽  
Yong Shen ◽  
Xiaohui Fu ◽  
Chongyi Chen ◽  
...  
Keyword(s):  
Amino Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization

The initiators for ring-opening polymerization (ROP) of α-amino acid N-carboxyanhydrides (NCA) to prepare polypeptides usually require high nucleophilicity. For the initiators with lower nucleophilicity, slow initiation and fast propagation lead...

scholarly journals Random Poly(Amino Acid)s Synthesized by Ring Opening Polymerization as Additives in the Biomimetic Mineralization of CaCO3

Polymers ◽  
2012 ◽  
Vol 4 (2) ◽  
pp. 1195-1210 ◽  
Author(s):  
Vladimir Dmitrovic ◽  
Gijs J.M. Habraken ◽  
Marco M.R.M. Hendrix ◽  
Wouter J.E.M. Habraken ◽  
Andreas Heise ◽  
...  
Keyword(s):  
Amino Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Biomimetic Mineralization

Investigation of α-amino acid N-carboxyanhydrides by X-ray diffraction for controlled ring-opening polymerization

2019 ◽  
Vol 60 (3) ◽  
pp. 272-275 ◽  
Author(s):  
Olga Schäfer ◽  
Dieter Schollmeyer ◽  
Alexander Birke ◽  
Regina Holm ◽  
Kerstin Johann ◽  
...  
Keyword(s):  
Amino Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
X Ray Diffraction ◽  
X Ray

Controlled ring-opening polymerization of α-amino acid N-carboxy-anhydride by frustrated amine/borane Lewis pairs

2017 ◽  
Vol 53 (37) ◽  
pp. 5155-5158 ◽  
Author(s):  
Hongyuan Zhang ◽  
Yanzhao Nie ◽  
Xinmei Zhi ◽  
Haifeng Du ◽  
Jing Yang
Keyword(s):  
Amino Acid ◽  
Lewis Acid ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Amine Groups ◽  
Lewis Pairs

An FLP intermediate formed through the bulky borane Lewis acid and the amine groups of the propagation chain end controlled the ring-opening polymerization of α-amino acid N-carboxy-anhydride monomers.

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