Synthesis of Well-Defined Star-Branched Polymers by Coupling Reaction of Star-Branched Polymer Anions Comprised of Three Polymer Segments with Chain-End-Functionalized Polystyrenes with a Definite Number of Benzyl Bromide Moieties

2004 ◽  
Vol 37 (14) ◽  
pp. 5179-5189 ◽  
Author(s):  
Akira Hirao ◽  
Kaori Kawasaki ◽  
Tomoya Higashihara
Keyword(s):  
Benzyl Bromide ◽  
Coupling Reaction ◽  
Branched Polymers ◽  
Branched Polymer

scholarly journals The MATCHIT Automaton: Exploiting Compartmentalization for the Synthesis of Branched Polymers

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Mathias S. Weyland ◽  
Harold Fellermann ◽  
Maik Hadorn ◽  
Daniel Sorek ◽  
Doron Lancet ◽  
...  
Keyword(s):  
Endoplasmic Reticulum ◽  
Golgi Apparatus ◽  
Linear Time ◽  
Optimal Path ◽  
Theoretical Framework ◽  
Branched Polymers ◽  
Branched Polymer ◽  
Maximal Yield ◽  
Polymer Reactions ◽  
In Cells

We propose an automaton, a theoretical framework that demonstrates how to improve the yield of the synthesis of branched chemical polymer reactions. This is achieved by separating substeps of the path of synthesis into compartments. We use chemical containers (chemtainers) to carry the substances through a sequence of fixed successive compartments. We describe the automaton in mathematical terms and show how it can be configured automatically in order to synthesize a given branched polymer target. The algorithm we present finds an optimal path of synthesis in linear time. We discuss how the automaton models compartmentalized structures found in cells, such as the endoplasmic reticulum and the Golgi apparatus, and we show how this compartmentalization can be exploited for the synthesis of branched polymers such as oligosaccharides. Lastly, we show examples of artificial branched polymers and discuss how the automaton can be configured to synthesize them with maximal yield.

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