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Living cationic polymerization and polyhomologation: an ideal combination to synthesize functionalized polyethylene–polyisobutylene block copolymers
- Source :
- Polymer Chemistry. 7:1217-1220
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- A series of hydroxyl-terminated polyisobutylene-b-polyethylene (PIB-b-PE-OH) copolymers were synthesized by combining living cationic polymerization and polyhomologation. Allyl-terminated PIBs, synthesized by living cationic polymerization, were hydroborated with BH3·THF to produce 3-arm boron-linked stars, PIB3B, which served as macroinitiators for the in situ polyhomologation of dimethylsulfoxonium methylide. The resulting 3-arm star block copolymers, (PIB-b-PE)3B, were oxidized/hydrolysed to afford PIB-b-PE-OH. Characterization of all intermediates and final products by high temperature gel permeation chromatography (HT-GPC) and proton nuclear magnetic resonance spectroscopy (1H NMR) revealed the well-defined character of the copolymers. The thermal properties of the copolymers were studied by differential scanning calorimetry (DSC).
- Subjects :
- Polymers and Plastics
Chemistry
Organic Chemistry
Bioengineering
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Living cationic polymerization
01 natural sciences
Biochemistry
0104 chemical sciences
Gel permeation chromatography
Hydrolysis
Differential scanning calorimetry
Polymer chemistry
Proton NMR
Copolymer
Organic chemistry
Functionalized polyethylene
0210 nano-technology
Spectroscopy
Subjects
Details
- ISSN :
- 17599962 and 17599954
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- Polymer Chemistry
- Accession number :
- edsair.doi...........e85fb2f27b18d55c1723be49776e8fc9