Hyperbranched polyglycerol-aldehyde polymers
WebGlycerol-1,2-carbonate is formally the cyclic ester of carbonic acid with glycerol and has aroused great interest as a possible product from the "waste materials" carbon dioxide CO 2 and glycerol (especially from biodiesel production) with a wide range of applications.. The currently unsatisfactory yields and complex process conditions in direct synthesis stand … Web16 jun. 2015 · Branched structures, terminal units, and polyether chains within the polyglycerol structure, which ultimately define polyglycerol morphology, were identified in the polyglycerol samples obtained under different synthesis conditions and analyzed using the NMR spectroscopy technique (Table 3).
Hyperbranched polyglycerol-aldehyde polymers
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Web7 nov. 2024 · Hyperbranched polyglycerol (HPG), as the name implies, is a hyperbranched polymer with about 50–65% dendrimeric structure. Due to its ease in synthesis, globular nature, versatility in terms of functionalization, and superb biocompatibility profiles HPG … Web11 aug. 2011 · In particular, HPG showed very minimal polymer accumulation in vital organs after intravenous injection compared to other polymers widely used for various …
WebHyperbranched aliphatic polyethers with controlled molecular weights and narrow molecular weight distribution have been prepared via anionic polymerization of glycidol with rapid cation-exchange equilibrium. 1,1,1-Tris(hydroxymethyl)propane (TMP) was partially deprotonated (10%) and used as initiator for the anionic polymerization carried out … WebBACKGROUND: Until recently, hyperbranched polymers were thought to be ill-defined materials that were not useful as building blocks for well-defined complex polymer …
Web9 jun. 2016 · The paper summarizes recent advances in the application of polyglycidol and polyglycidol-containing polymers as drug carriers, reagents for diagnostic systems, and … WebDue to the citric acid core of the hyperbranched polyglycerols, they are able to break down into the smaller segments at neutral or acidic conditions. Apart from citric acid, glycidol, and water, other reagents or organic solvents have not been used in the synthetic and purification processes.
Web19 jan. 2010 · Fundamental parameters of hyperbranched polymers include molar mass, polydispersity, degree of branching, and end-group functionality. Selected …
Web11 apr. 2024 · The release of the two drugs in PBS at pHs 5 and 7.4 exhibited higher release rates when compared to the release of the single drug from the carriers, indicating an increase in bioavailability and solubility in aqueous media utilizing an oxygen-rich polymer modified GO carrier [ 56 ]. ta wan setiabudi oneWeb4 nov. 2024 · More recently, hyperbranched polyglycerols (hbPGs) have been seen as one of the most attractive hyperbranched polymers , which is owed to their excellent … tawan teeradaWeb12 nov. 2012 · Biodegradable hyperbranched polyglycerols (dHPGs) were synthesized through oxyanionic initiating hybrid polymerization of glycerol and glycidyl methacrylate. Due to the introduction of ester linkages into the hyperbranched polyglycerol backbone, dHPGs showed good biodegradability and low cytotoxicity. tawan semarangWeb9 dec. 2024 · Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications. In a century when environmental … tawan tehraniWeb28 dec. 1999 · Via propoxylation the polarity of the highly hydrophilic polyglycerols can be varied, resulting in versatile, highly functional branched polyether polyols. The … tawan taradolrattanakronWeb1 okt. 2024 · Hyperbranched polymers HBPG-0 ― HBPG-7 were prepared by a modified procedure previously reported by Sunder et al. [2] In a 100 ml three-neck flask equipped … ta wan taman anggrekWeb5 feb. 2024 · First, low-molecular-weight hyperbranched polyglycerol (LMPG), containing cis -1,2- or 1,3-diols, was synthesized by cationic ring-opening polymerization of glycidol initiated from citric acid. Second, 4-vinylphenyl boronic acid and acrylamide were co-polymerized in the LMPG-containing alkaline solution used for preparing the hydrogel. tawan summarecon bekasi