Invention Grant
US07884157B2 Process for preparing copolymers by anionic solvent-free polymerization
失效
通过阴离子无溶剂聚合制备共聚物的方法
- Patent Title: Process for preparing copolymers by anionic solvent-free polymerization
- Patent Title (中): 通过阴离子无溶剂聚合制备共聚物的方法
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Application No.: US12095248Application Date: 2006-11-28
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Publication No.: US07884157B2Publication Date: 2011-02-08
- Inventor: André Mas , Nadia Guerrouani , François Schue
- Applicant: André Mas , Nadia Guerrouani , François Schue
- Applicant Address: FR Paris FR Montpellier
- Assignee: Centre National de la Recherche Scientifique,Universite Montpellier 2 Sciences et Techniques
- Current Assignee: Centre National de la Recherche Scientifique,Universite Montpellier 2 Sciences et Techniques
- Current Assignee Address: FR Paris FR Montpellier
- Agency: Young & Thompson
- Priority: FR0512001 20051128
- International Application: PCT/FR2006/002603 WO 20061128
- International Announcement: WO2007/060344 WO 20070531
- Main IPC: C08L29/04
- IPC: C08L29/04 ; C08L67/00
Abstract:
The invention concerns a process for preparing a block or comb copolymer comprising at least one hydrophilic portion and at least two hydrophobic portions, by anionic solvent-free polymerization of a prepolymer selected from a polyethylene glycol and a polyvinyl alcohol, and of a lactone or dilactone monomer. The process is carried out in the presence of an alkaline-earth metal hydride, in an inert atmosphere, and the polymerization step is not carried out under vacuum. The invention also concerns copolymers obtained by this process.
Public/Granted literature
- US20080312376A1 Process for Preparing Copolymers by Anionic Solvent-Free Polymerization Public/Granted day:2008-12-18
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