Removal of thiocarbonylthio end groups from polymers
AssigneeKing Abdullah University of Science and Technology
InventorsXiaoshuang FENG, Prakash ALAGI, Yves GNANOU, Nikos HADJICHRISTIDIS
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure describe a method of removing an end group from a polymer comprising contacting a polymer having a thiocarbonylthio end group, or a solution containing such a polymer, with an excess of a borane compound in the presence of oxygen. Embodiments of the present disclosure further describe a method of polymerization comprising contacting one or more monomers with an initiator and a chain transfer agent to form a polymer having a thiocarbonylthio end group in a reaction solution and contacting the polymer with a borane compound in the presence of oxygen to remove the thiocarbonylthio end group from the polymer.
Claims20
A method of removing an end group from a polymer comprising contacting a polymer having a thiocarbonylthio end group with a borane compound in the presence of oxygen.
A method of polymerization, comprising:
- contacting one or more monomers with an initiator and a chain transfer agent to form a polymer having a thiocarbonylthio end group in a reaction solution;
- and
- contacting the polymer with an excess of a borane compound in the presence of oxygen to remove the thoicarbonylthio end group from the polymer.
Dependencies are inferred from the claim text.