A Strategy Based on the Enzyme-Catalyzed Polymerization Reaction of Asp-Phe-Tyr Tripeptide for Cancer Immunotherapy

2021 ◽  
Author(s):  
Qiu-Ling Zhang ◽  
Diwei Zheng ◽  
Xue Dong ◽  
Pei Pan ◽  
Si-Min Zeng ◽  
...  
Keyword(s):  
Cancer Immunotherapy ◽  
Polymerization Reaction ◽  
Catalyzed Polymerization

Friedel-Crafts Catalysts and Polymerization

1947 ◽  
Vol 20 (2) ◽  
pp. 375-376 ◽  
Author(s):  
A. G. Evans ◽  
G. W. Meadows ◽  
M. Polanyi
Keyword(s):  
Gas Phase ◽  
Boron Trifluoride ◽  
High Vacuum ◽  
Polymerization Reaction ◽  
Catalyzed Polymerization

Abstract In an earlier communication, evidence was given on which the following conclusion was based. In the dimerization of diisobutene and the polymerization of isobutene, it is essential that a trace of some third component, X, shall be present in addition to the monomer and the Friedel-Crafts catalyst, in order that the reaction shall proceed at an appreciable rate. It was suggested then that this third component was probably water. We have continued this line of investigation by studying the boron trifluoride-catalyzed polymerization of isobutene in the gas phase, using high-vacuum technique. The polymerization reaction was followed by mixing the boron trifluoride and the isobutene in the gas phase and measuring the fall in pressure with time. We may summarize the results as follows:

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