𝔖 Bobbio Scriptorium
✦   LIBER   ✦

New Regular, Amphiphilic Poly(ampholyte)s: Synthesis and Characterization

✍ Scribed by François Rullens; Michel Devillers; André Laschewsky

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
202 KB
Volume
205
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: Hydrophobically substituted diallylamines bearing a hexyl, dodecyl, or octadecyl chain were synthesized and homopolymerized as hydrochlorides. Copolymerization of the diallylamines with maleic acid produces alternating copolymers. The copolymers behave as amphiphilic polyampholytes and dissolve best in the acidic or in the basic form. Only the copolymer with the hexyl chain could be dissolved in aqueous solvents and shows hydrophobic association. The copolymers with the longer alkyl chains require polar protic organic solvents. All polymers are amorphous, but show a superstructure in bulk due to their amphiphilicity.
magnified image

📜 SIMILAR VOLUMES

Synthesis and characterization of new am
Synthesis and characterization of new amphiphilic polyurethane compositions
✍ W. Marconi; A. Martinelli; A. Piozzi 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 402 KB

New segmented polyurethanes containing in the chain extender molecule (dihydroxyethyl-nhexadecylamine, DHHA) both a hydrophobic long alkyl group and a tertiary ammonium group (whose polarity was further increased by quaternization reaction), are described. In order to evaluate the influence of the c

Synthesis and characterization of amphip
Synthesis and characterization of amphiphilic hydroxypropylcellulose-graft-poly(ε-caprolactone)
✍ Ruiwen Shi; Helen M. Burt 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 160 KB 👁 1 views

## Abstract An amphiphilic graft copolymer, hydroxypropylcellulose‐graft‐poly(ε‐caprolactone) (HPC‐__g__‐PCL), was synthesized by bulk polymerization without a catalyst and characterized with one‐dimensional and two‐dimensional NMR spectroscopy. Molar substitution of ε‐caprolactone on HPC (MS~CL~)

Synthesis and Characterization of Amphip
Synthesis and Characterization of Amphiphilic Poly(caprolactone) Star Block Copolymers
✍ Sung Guk An; Chang Gi Cho 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 104 KB

## Abstract **Summary:** Novel, star‐shaped, amphiphilic block copolymers composed of fully degradable poly(caprolactone) were synthesized by sequential addition polymerization. In the first step, four‐arm macroinitiators were produced by ring‐opening polymerization of caprolactone by initiation wi

Synthesis and Characterization of Amphip
Synthesis and Characterization of Amphiphilic Poly(ethylene oxide)-block-poly(hexyl methacrylate) Copolymers
✍ Surbhi Mahajan; Sabine Renker; Peter F. W. Simon; Jochen S. Gutmann; Anurag Jain 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 223 KB

## Abstract We describe the preparation of amphiphilic diblock copolymers made of poly(ethylene oxide) (PEO) and poly(hexyl methacrylate) (PHMA) synthesized by anionic polymerization of ethylene oxide and subsequent atom transfer radical polymerization (ATRP) of hexyl methacrylate (HMA). The first

Poly(dimethylsiloxane)-Substituted 2,2′:
Poly(dimethylsiloxane)-Substituted 2,2′:6,2″-Terpyridines: Synthesis and Characterization of New Amphiphilic Supramolecular Diblock Copolymers
✍ Steve Landsmann; Andreas Winter; Manuela Chiper; Charles-André Fustin; Stephanie 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 421 KB

## Abstract Terpyridine‐modified hydrophobic poly(dimethylsiloxane) and hydrophilic poly(ethylene oxide) were combined to new metallo‐supramolecular AB‐diblock copolymers by utilizing Ru(II) ions. The polymers were synthesized by hydrosilylation of heteroleptic allyloxy‐functionalized Ru(II) comple

Synthesis and characterization of new fl
Synthesis and characterization of new fluorene-based poly(ether imide)s
✍ Sheng-Huei Hsiao; Chin-Tang Li 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 219 KB 👁 2 views

A novel bis(ether anhydride) monomer, 9,9-bis [4-(3,4-dicarboxyphenoxy)phenyl]fluorene dianhydride (4), was synthesized from the nitrodisplacement of 4-nitrophthalonitrile by the bisphenoxide ion of 9,9-bis(4-hydroxyphenyl)fluorene (1), followed by alkaline hydrolysis of the intermediate tetranitril