Kirila, Tatyana Smirnova, Anna Kurlykin, Mikhail Tenkovtsev, Andrey Filippov, Alexander
Published in
Colloid and Polymer Science
Thermosensitive star-shaped eight-arm poly-2-alkyl-2-oxazolines (M = 21,000 g mol−1) was synthesized. The arms were gradient copolymers of 2-ethyl-2-oxazoline (EtOx) and 2-isopropyl-2-oxazoline (iPrOx). The more hydrophilic EtOx units prevailed near the calix[8]arene core. For comparison, model linear gradient copolymer (M = 3800 g mol−1) was inves...
Murima, Douglas Pasch, Harald
Published in
Analytical and bioanalytical chemistry
The comprehensive branching analysis of complex polymers is still a challenge in advanced polymer analysis. Average branching information (average number and length of branches) can be obtained by spectroscopic methods, mainly NMR spectroscopy. The determination of the branching distribution, i.e., the concentration of macromolecules with a given n...
Doganci, Erdinc Davarci, Derya
Published in
Journal of Polymer Research
Cholesterol end-capped linear and star-shaped poly(ε-caprolactone) (PCL) polymers were prepared by a combination of copper catalyzed azide–alkyne cycloaddition (CUAAC, click chemistry) and ring-opening polymerization (ROP) techniques. The chemical structures of these polymers were determinated by Fourier Transform Infrared (FTIR), 1H NMR, 31P NMR, ...
Song, Wen-Fang Zhao, Qing-Li Zhou, Xiu-Jie Zhang, Li-Shun Huang, Yan-Ping Liu, Zhao-Sheng
Published in
Microchimica Acta
A star-shaped molecularly imprinted coating was prepared starting from octavinyl-modified polyhedral oligomeric silsesquioxanes (Ov-POSS). It possesses a relatively open structure and has good site accessibility and a larger capacity even at lower cross-linking. The imprinted coating was prepared from S-amlodipine (S-AML) as the template and analyt...
Xie, Meihua Ge, Juan Xue, Yumeng Du, Yuzhang Lei, Bo Ma, Peter X
Published in
Journal of the mechanical behavior of biomedical materials
Biodegradable and star-shaped polymers with highly tunable structure and properties have attracted much attention in recent years for potential biomedical applications, due to their special structure. Here, inositol-based star-shaped poly-L-lactide-poly(ethylene glycol) (INO-PLLA-PEG) biomedical polymer implants were for the first time synthesized ...
Oledzka, Ewa
Published in
Polymer Bulletin
A novel initiator, naturally occurring in soy, has been developed for a direct synthesis of aliphatic star-shaped homo- and copolyesters. The synthesis is based on one of several known isoflavones, genistein, which has been employed as an initiator of homopolymerization of poly(l-Lactide) or co-initiator of copolymerization of ε-caprolactone and l-...
Abd-El-Aziz, A.S. Dalgakiran, S.S.
Published in
Polymer Science: A Comprehensive Reference, 10 Volume Set
This chapter is focused on the chemistry of organometallic and coordination macromolecules. The recent literature highlights of organometallic polymers are described in terms of their synthetic methodologies, structural properties, and applications. Hyperbranched dendrimers, cross-linked polymers, and star-shaped polymers are also reviewed. A numbe...
Luo, Zhihua Xia, Boru Fu, Zhifeng
Published in
Journal of Polymer Research
Star-shaped polymers that consist of well-defined polystyrene (PS) arms were successfully synthesized in high yield by coupling reaction between multifunctional core molecules and hydroxyl-terminated PS in the presence of 1, 3-dicyclohexylcarbodiimide and 4-(dimethylamino) pyridine at room temperature. Several systems were investigated: (1) Pyromel...
Jankova, Katja Hvilsted, Søren
Block copolymers based on poly(pentafluorostyrene), PFS, in various numbers and of different lengths, and polystyrene are prepared by atom transfer radical polymerization (ATRP). Di- and triblock copolymers with varying amounts of PFS were synthesized employing either I phenylethylbromide or 1,4-dibromoxylene as initiators for ATRP. Diverse bromo(e...
Jankova, Katja Hvilsted, Søren
Block copolymers based on poly(pentafluorostyrene), PFS, in various numbers and of different lengths, and polystyrene are prepared by atom transfer radical polymerization (ATRP). Di- and triblock copolymers with varying amounts of PFS were synthesized employing either I phenylethylbromide or 1,4-dibromoxylene as initiators for ATRP. Diverse bromo(e...
