ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract The total synthesis of diblock copolymers comprising poly(p-chlorostyrene) (PpClSt) and polytetrahydrofuran (PTHF) segments have been accomplished. The syntheses involved the living polymerization of p-chlorostyrene (pClSt) by the 2-chloro-2,4,4-trimethylpentane/TiCl4 initiating system followed by the blocking of tetrahydrofuran (THF) from thesec-benzylic chlorine end-group of PpClSt in the presence of AgPF6 in THF at room temperature and quenching with methanol: A series of PpCISt-b-PTHF diblocks have been prepared. Themolecular weight of the PTHF segments increased with reactiontime. The blocking efficiency (Beff) calculated by1H NMRspectroscopy was nearly 100%.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01032439
