✦ LIBER ✦

Star-graft copolymers. Synthesis of amphiphilic graft copolymers with star-branched poly(oxyethylene) side chains

✍ Scribed by Iliyana V. Berlinova; Ivaylo V. Dimitrov; Ivan Gitsov

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 164 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(199703)35:4<673::aid-pola9>3.0.co;2-q

No coin nor oath required. For personal study only.

✦ Synopsis

The synthesis of novel amphiphilic star-graft (SG) copolymers containing hydrophilic poly(oxyethylene) (PEO) side chains attached to a hydrophobic backbone by multifunctional entity is reported. In a first step poly(phthalimidoacrylate-co-styrene) was converted into polymers containing different number of multifunctional branching cites distributed along the main chain by partial aminolysis of the phthalimidoacrylate units with tris(hydroxymethyl)aminomethane. In the second step, these reactive copolymers yielded SG copolymers with different number of star-shaped PEO side groups by reaction with isocyanato terminated methoxy-PEO. The copolymers were characterized by size-exclusion chromatography, IR-, and NMR-spectroscopy. Their thermal properties were examined by thermal gravimetric analysis and differential scanning calorimetry. The studies indicate that the grafting degree and hydrogen bonding determine to a great extent the behavior of the SG copolymers in solid state and in solution.

📜 SIMILAR VOLUMES

Synthesis of Amphiphilic Graft Copolymer

Synthesis of Amphiphilic Graft Copolymers with Poly(2-methyl-2-oxazoline) Side Chains and a Backbone Containing Chloromethylstyrene and Methyl Methacrylate

✍ Juan Rueda-Sánchez; Mario Ceroni Galloso 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 95 KB

Synthesis of a Poly(vinyl alcohol)-Based

Synthesis of a Poly(vinyl alcohol)-Based Graft Copolymer Having Poly(ε-caprolactone) Side Chains by Solution Polymerization

✍ Keigo Aoi; Hiromi Aoi; Masahiko Okada 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 327 KB

Synthesis of urethane graft copolymers w

Synthesis of urethane graft copolymers with perfluoroalkyl and silicone-containing side chains and their surface properties

✍ Dong-Kwon Kim; Soo-Bok Lee; Kap-Soo Doh; Young-Woo Nam 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB 👁 1 views

Dihydroxyl-terminated macromonomers with two groups, a perfluoroalkyl group and a silicone-containing group, were synthesized by free-radical polymerization with perfluoroalkylethyl acrylate (FA), 3-[tris(trimethylsilyloxy)silyl] propyl methacrylate (SiMA), and 1-thioglycerol (TG). Using these macro

A successive route to amphiphilic graft

A successive route to amphiphilic graft copolymers with a hydrophilic poly(3-hydroxypropyl methacrylate) backbone and hydrophobic polystyrene side chains

✍ Eli Ruckenstein; Hongmin Zhang 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB

A successive method for preparing novel amphiphilic graft copolymers with a hydrophilic backbone and hydrophobic side chains was developed. An anionic copolymerization of two bifunctional monomers, namely, allyl methacrylate (AMA) and a small amount of glycidyl methacrylate (GMA), was carried out in

Studies on water-swellable elastomers. I

Studies on water-swellable elastomers. II. Thermal properties and crystalline behavior of amphiphilic graft copolymers with poly(ethylene glycol) side chains

✍ Min Li; Zhiyuan Xie; Xinfang Chen; Shuhua Li 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB 👁 1 views

The thermal properties and crystalline structure of the amphiphilic graft copolymers CR-g-PEG600, CR-g-PEG2000, and CR-g-PEG6000 using chloroprene rubber (CR) as the hydrophobic backbone and poly(ethylene glycol) (PEG) with different molecular weights as the hydrophilic side chains were studied by D

Linking reactions of living polymers wit

Linking reactions of living polymers with bromomethylbenzene derivatives: Synthesis and characterization of star homopolymers and graft copolymers with polyelectrolyte branches

✍ Marinos Pitsikalis; Stella Sioula; Stergios Pispas; Nikos Hadjichristidis; Danie 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 219 KB 👁 2 views

Anionic polymerization techniques utilizing 1,2,4,5-tetra(bromomethyl)benzene as the linking agent were employed for the synthesis of four-arm star polymers with poly(tert-butyl methacrylate) (PtBuMA), poly(methyl methacrylate), poly(tert-butylacrylate) (PtBuA), or poly(2-vinylpyridine) (P2VP) branc