Controlling Heat Transfer for the Manufacturing of High Molecular Weight Polyisobutylene via Formation of Micelles  

作　　者：Szilard Csihony Nicole Janssen Klaus Mühlbach 

机构地区：[1]Advanced Materials & Systems

出　　处：《Chinese Journal of Polymer Science》2019年第9期898-902,共5页高分子科学（英文版）

摘　　要：An alternative cationic polymerization method is developed to produce high molecular weight polyisobutylene (HM-PIB) with molecular weights above 5×10^5g/mol. The method involves micelle formation via functionalized low molecular weight polyisobutylene (LM-PIB) in non-polar solvent. One end of LM-PIB is modified with an imidazolium-containing ionic group, which together with the anion (eg. Al2Cl7) works as Lewis acid. While the monomer isobutylene dissolves readily in non-polar solvent, polymerization can occur only within the micelle, which affords stable HM-PIB particles. HM-PIB with a molecular weight (MW) close to 1 × 10^6 g/mol was produced successfully with the described method.An alternative cationic polymerization method is developed to produce high molecular weight polyisobutylene（HM-PIB） with molecular weights above 5 × 105 g/mol. The method involves micelle formation via functionalized low molecular weight polyisobutylene（LM-PIB） in non-polar solvent. One end of LM-PIB is modified with an imidazolium-containing ionic group, which together with the anion（e.g. Al2 Cl7） works as Lewis acid. While the monomer isobutylene dissolves readily in non-polar solvent, polymerization can occur only within the micelle, which affords stable HM-PIB particles. HM-PIB with a molecular weight（MW） close to 1 × 106 g/mol was produced successfully with the described method.

关 键 词：CATIONIC POLYMERIZATION High molecular WEIGHT POLYISOBUTYLENE MICELLE 

分 类 号：O6[理学—化学]