Novel Starlike Amphiphilic Graft Copolymers with Hydrophilic Poly(acrylic acid) Backbone and Hydrophobic Poly(methyl methacrylate) Side Chains

Thermosensitive PNIPAM-b-HTPB block copolymer micelles: Molecular architectures and camptothecin drug release

“…The size of micelle nanoparticles will be affected by the morphologies and the chain lengths of hydrophilic/hydrophobic segments, which is important for their biomedical applications [30,31]. Therefore, the morphologies, size and size distribution of the as-prepared copolymers micelles are investigated by TEM observations and DLS measurements, as illustrated in Table 2 and Fig.…”

Amphiphilic Multicore‐Shell Particles Based on Polyphenylene Dendrimers

“…[8] However, most of the examples employ dendritic macroinitiators with a flexible structures such as PAMAM [9,10] or ether-based dendrimers. [11,12] Typically the attachment of the polymeric shell in these core-shell systems occurs by either a grafting-from [13] or grafting-onto [14] process. However, the requirement of a high exposure and reactivity of the functions at the macroinitiator periphery is often hampered by backfolding and deactivation.…”

Preparation of star copolymers with three arms of poly(ethylene oxide-co-glycidol)-graft-polystyrene and investigation of their aggregation in water

“…Both the copolymers have about one hydrophobic PS chain in every 10 hydrophilic EO units, but the average length of hydrophobic PS chain of the star graft copolymer (17 St units) is shorter than that of the linear graft copolymer (22 units). And it has been proven that the shorter hydrophobic side chain results in higher cmc in the case of graft copolymer [13] while the star graft structure does not have distinct advantage in reducing cmc value than the linear graft structure [14].…”

“…However, the investigation of the self-assembly behaviors of star graft copolymers has been limited because of the difficulty in the synthesis of well-defined amphiphilic star graft copolymers with controlled molecular weights and low polydispersities [14]. Recently, star graft copolymers with three and four arms comprising poly(2-hydroxyethyl methacrylate) as main chain and poly(n-butyl acrylate) as side chains were synthesized by ATRP [15].…”

“…The similar architectures with both backbone and graft chains composed of polybutadiene were prepared through macromonomer technique and anionic polymerization [16]. The first synthesis of well-defined star copolymers with arms composed of hydrophilic poly(acrylic acid) (PAA) backbone and hydrophobic poly(methyl methacrylate) (PMMA) side chains by ATRP has also been reported [14] lately. However, the synthesis of star graft copolymer with arms consisting of hydrophilic PEO backbone has never been reported in the literature.…”