𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Controlled synthesis of amphiphilic block copolymers with pendant glucose residues by living cationic polymerization

✍ Scribed by Kenji Yamada; Katsushi Yamaoka; Masahiko Minoda; Takeaki Miyamoto

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
706 KB
Volume
35
Category
Article
ISSN
0887-624X

No coin nor oath required. For personal study only.

✦ Synopsis

Amphiphilic block copolymers of vinyl ethers (VES) of the type -[CH2CH(OCH,CH,0 R)].

  • [CH,CH(OiBu)]n -were synthesized by living cationic polymerization, where R is a I>-glucose residue, and m and n are the degrees of polymerization (m = 20-50; n = 11-89). To obtain them, sequential living block copolymerization of isobutyl vinyl ether (IBVE) and the vinyl ether carrying 1,2:5,6 -diisopropylidene-t) -glucose residue was conducted by using the HC1 adduct of IBVE, CH~CH(OLT3u)Cl, as initiator in conjunction with zinc iodide. These precursor block copolymers had a narrow molecular weight distribution (MW/ M" -1.1) and a controlled composition. Treatment of them with a trifluoroacetic acid/ water mixture led to the target amphiphiles. The volubility of the amphiphilic block copolymers in various solvents depended strongly on composition or the m/n ratio. Their solvent-cast thin films were observed, under a transmission electron microscope, to exhibit various microphage-separated surface morphologies such as spheres, cylinders, and lamellae, depending on composition. C

📜 SIMILAR VOLUMES

Amphiphilic block and statistical copoly
Amphiphilic block and statistical copolymers with pendant glucose residues: Controlled synthesis by living cationic polymerization and the effect of copolymer architecture on their properties
✍ Kenji Yamada; Masahiko Minoda; Takeshi Fukuda; Takeaki Miyamoto 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB 👁 2 views

Amphiphilic block and statistical copolymers of vinyl ethers (VEs) with pendant glucose residues were synthesized by the living cationic polymerization of isobutyl VE (IBVE) and a VE carrying 1,2:5,6-di-O-isopropylidene-D-glucose (IpGlcVE), followed by deprotection. The block copolymer was prepared

Controlled synthesis of glycopolymers wi
Controlled synthesis of glycopolymers with pendant D-glucosamine residues by living cationic polymerization
✍ Kenji Yamada; Masahiko Minoda; Takeaki Miyamoto 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 205 KB

D-Glucosamine-containing glycopolymers with well-controlled structure were synthesized by living cationic polymerization. To this end, D-glucosamine-containing vinyl ether (VE) of the type [CH 2 |CH(OCH 2 CH 2 OR)] was prepared, where R denotes a 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimide-b-D-glucopyr

Synthesis of Well-defined Amphiphilic Bl
Synthesis of Well-defined Amphiphilic Block Copolymers by Organotellurium-Mediated Living Radical Polymerization (TERP)
✍ Santosh Kumar; Mohammad Changez; C. N. Murthy; Shigeru Yamago; Jae-Suk Lee 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 528 KB

## Abstract Low‐molecular weight amphiphilic diblock copolymers, polystyrene‐__block__‐poly (2‐vinylpyridine) (PS‐__b__‐P2VP), and (P2VP‐__b__‐PS) with different block ratios were synthesized for the first time via organotellurium‐mediated living radical polymerization (TERP). For both the homo‐ an

Synthesis of novel glycopeptide-polyoxaz
Synthesis of novel glycopeptide-polyoxazoline block copolymers by direct coupling between living anionic and cationic polymerization systems
✍ Kaname Tsutsumiuchi; Keigo Aoi; Masahiko Okada 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 320 KB

## Abstract A novel glycopeptide‐containing block copolymer, poly[__O__‐(tetra‐__O__‐acetyl‐β‐D‐glucopyranosyl)‐L‐serine]‐__block__‐poly(2‐methyl‐2‐oxazoline) (5), was synthesized by mutual termination of living polymerizations of a sugar‐substituted α‐amino acid __N__‐carboxyanhydride (NCA) (1) an