公开(公告)号：WO2018197885A1

公开(公告)日：2018-11-01

申请号：PCT/GB2018/051106

申请日：2018-04-26

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： RANNARD, Steve ,  CHAMBON, Pierre ,  CASSIN, Savannah

IPC: C08F2/38

Abstract: A method of preparing a branched polymer comprises the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The average length of each vinyl polymer chain within the product is short.

公开(公告)号：WO2020089649A1

公开(公告)日：2020-05-07

申请号：PCT/GB2019/053106

申请日：2019-10-31

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： RANNARD, Steve ,  CHAMBON, Pierre ,  CASSIN, Savannah

IPC: C08F2/38 ,  C08F12/36 ,  C08F220/20 ,  C08F222/10

Abstract: Responsive or degradable branched polymers may be prepared by the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The multivinyl monomer may comprise a cleavable group, for example an ester, or a multiplicity of such groups, between two vinyl groups. Said monomer may be a macromonomer containing multiple cleavage sites.

公开(公告)号：WO2018197884A1

公开(公告)日：2018-11-01

申请号：PCT/GB2018/051105

申请日：2018-04-26

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： RANNARD, Steve ,  CHAMBON, Pierre ,  CASSIN, Savannah

IPC: C08F122/10 ,  C08F122/38 ,  C08F112/36

Abstract: A method of preparing a polymer comprises the use of free radical vinyl polymerisation to form carbon-carbon backbone segments of the polymer, wherein the longest chains in the polymer comprise vinyl polymer chains interspersed with other chemical groups and/or chains. The product has the characteristics of astep- growth polymer comprising a mixture of polyfunctional step-growth monomer residues formed by vinyl polymerization.