Synthesis of a novel diblock copolymer of isoprene and methacrylic acid

✍ Scribed by Zaijun Lu; Xiaoyu Huang; Junlian Huang; Guangqin Pan

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 413 KB
• Volume: 19
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/(sici)1521-3927(19981001)19:10<527::aid-marc527>3.0.co;2-a

✦ Synopsis

A new diblock copolymer of isoprene (I) and methacrylic acid (MAA) was prepared by combination of an anionic mechanism with a charge transfer complex mechanism. In the first step, the polyisoprene (PI) macroanion formed by initiation with butyllithium was capped by p-dimethyl~ino~nzaldehyde (capped polyisoprene = Plr,); a dimeric coupling product was not detected. Then the binary system constituting of Plr, and ~nzophenone was used to initiate the polymeri~tion of MAA under UV i~adiation. The resulting diblock copolymer (PI-b-PMAA) was characterized by IR, NMR and gel permeation chromatography (GPC) in detail.