Introduction to Branched Polyester

What is/are Branched Polyester?

Branched Polyester - Polyurethane network was formed from poly(dimethylsiloxane)-based macrodiol (PDMS), 4,4′-methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20; used as crosslinking agent). ^[1] Therefore, within the protective organic coatings market, this article provides a review of the most recent developments in environmentally friendly solutions, including bio-based and water-borne epoxy, hyperbranched polyester for low- volatile organic compounds (VOC) coatings, waterborne polyurethane and non-isocyanate polyurethanes (NIPUs), and graphene or bio-based fillers for acrylics. ^[2] Branched polyesters based on the polyethylene terephthalate were synthesized by incorporating isophthalic acid (IPA) and trimellitic anhydride (TMA). ^[3] For this research hyperbranched polyester (HBP), bifunctional p-carborane and carborane-functionalized HBP were synthesized. ^[4] An isocyanate-terminated hyperbranched polymer (HBI) was successfully synthesized by reacting hyperbranched polyester (BoltornTM HB-20) with isophorone diisocyanate (IPDI). ^[5] In this study, we developed hyperbranched polyester (HBP)-based UV-curable sealant with tunable mechanical properties. ^[6] PVDF/aliphatic hyperbranched polyester of 3rd generation (HBP-G3) blend (80/20 w/w) for energy-harvesting applications. ^[7] A new hybrid adsorbent based on zeolite modified with hyperbranched polyesterpolybenzoylthiocarbamate is presented. ^[8] Herein, a mussel-mimetic strategy is reported to fabricate a soy protein (SP)-based composite film via aqueous co-assembly of 3-aminophenylboronic acid-functionalized cellulose nanofibril (AB@CNF) and hyperbranched polyester (HPE). ^[9] To study the effect of hyperbranched polyester with different kinds of terminal groups on the thermomechanical and dielectric properties of silica–epoxy resin composite, a molecular dynamics simulation method was utilized. ^[10] A highly efficient hybrid adsorbent based on an industrially available, biodegradable, non-toxic linencellulose modified with hyperbranched polyesterpolybenzoylthiocarbamate has been synthesized. ^[11] The PBAT fibers were fabricated by using our own designed melting centrifugal spinning setup, and followed by improving the fiber wettability with hyperbranched polyesters (HBP). ^[12] In this manuscript, the graphene oxide (GO) was modified by hyper-branched polyester (HBP). ^[13] In the present work, a numerical investigation based on a modified peridynamic method of fracture properties of epoxy resin reinforced by nanoparticles, more specifically hyperbranched polyester (HBP), was conducted. ^[14] In this context, nonionic hyperbranched polyesters (HBPs) with indole or isatin functionality were rationally designed, synthesized, and characterized. ^[15] In this article, environmentally friendly natural rubber (NR)/carbon (CB) composites reinforced by maleic anhydride (MAH) grafted hemp fiber (HF) in the presence of polyhydric hyper-branched polyester (PHP) were studied. ^[16] neat PVDF and (ii) PVDF/aliphatic hyperbranched polyester of 1st generation (HBP-G1) blend (80/20 w/w) and their piezoelectric sensor measurement studies. ^[17] In this article, pure epoxy resin and silica–epoxy nanocomposite models were established to investigate the effects of hyperbranched polyester on microstructure and thermomechanical properties of epoxy resin through molecular dynamics simulation. ^[18] To overcome the flammability and severe dripping of polypropylene (PP), a novel organic-inorganic hybrid K-HBPE@APP (microencapsulated APP by a hyperbranched polyester (HBPE) via silane coupling agent (KH-550)) was obtained and used as a high-efficient flame retardant and smoke suppressant. ^[19] Herein the formation of hyperbranched polyesters that have been previously used in the construction of enzyme-like catalytic complexes is explored. ^[20] Hyperbranched polyesters (HBPs) included various HBPs; generation2 (HBPs16) and generation 4 (HBPs 64) are formulated for encapsulation of phthalocyanine pigments using liquid-phase separation method. ^[21] Cellulose-based hyperbranched polyesters (CHBP) have many prospective applications and are therefore a highly explored area. ^[22] In this study, a flexible water-resistant fire protective coating was fabricated by dip-coating with hyperbranched polyester (HBPE), polyvinyl formal-acetal (PVFA) and HBPE-modified ammonium polyphosphate (APP). ^[23] Fully atomistic molecular dynamics simulations are employed to study in detail the interactions between a complex comprised by a PEGylated hyperbranched polyester (HBP) and doxorubicin molecules, with a model dipalmitoylphosphatidylglycerol membrane in an aqueous environment. ^[24] This work represents the synthesis of nanocomposites based hyperbranched polyester (HPES) and ZnO nanorods (ZnO NRs) as photocatalysts. ^[25] In order to improve the mechanical properties of PPC, a hyperbranched polymer with a large number of active epoxy groups at the end (epoxy-terminated hyperbranched polyester, EHBP) was synthesized and characterized by FTIR, NMR and GPC. ^[26] The second-generation hydroxyl-terminated hyperbranched polyester (HB-20) was used as the core, and perfluorooctylethanol (PFOE), monohydroxypolyoxyethylene ether (MPEG) and n-octadecyl alcohol (C18) were grafted to the periphery of HB-20, coupled by isophorone diisocyanate (IPDI) to synthesize four star hyperbranched polymers (SHPs). ^[27] One ATPS is based on a hyperbranched polyesteramide and dextran T40 and the second one is formed by polyethylene glycol and dextran T40. ^[28] A series of environmentally friendly polyurethane (PU) networks based on polycaprolactone as soft segment (SS) and Boltorn® aliphatic hyperbranched polyester of the second pseudo generation as crosslinking agent was prepared by a two-step polymerization in solution. ^[29] Cellulose blended hyperbranched polyester (CHP) and hyperbranched cellulose polyester (HPC) were synthesized by melt condensation method using 2,2-bis (methylol) propionic acid and p-TSA. ^[30] hyperbranched epoxy and hyperbranched polyester were prepared by mechanical mixing at different weight ratios. ^[31] Herein, we report a facile strategy for preparing a biodegradable SPI-based composite film by incorporating a biomass-derived, water-soluble hyperbranched polyester (HBPE) and a polyfunctional cardanol derivative. ^[32] In this paper, carboxylic multi-walled carbon nanotubes (MWCNTs-COOH) were modified by a series of hyperbranched polyesters (HBP) with different molecular structures (different branching degree) through surface grafting, and then the epoxy resin (EP)/carbon nanotube composites were prepared to explore the influences of structure regulation of HBP modified carbon nanotubes on the toughening performance of the composites. ^[33] In order to improve the interfacial properties of graphene oxide (GO) and epoxy resin (EP), hyperbranched polyesters with terminal carboxyl (HBP) non-covalently functionalized graphene oxide (HBP-GO) was achieved by strong π-π coupling between hyperbranched polyesters and GO nanosheets. ^[34] Branched polyesters with acid degradable and oxidation responsive β-thiopropionate groups have been obtained by lipase catalyzed polycondensation of diester and hydroxyester monomers from heptanal, a castor oil derivative. ^[35] In this work, a novel anti-smudge coating system was developed by using hydroxyl-terminated hyperbranched polyester as a coating precursor, mono-hydroxyl-terminated poly(dimethylsiloxane) (PDMS) as an anti-smudge agent, and hexamethylene diisocyanate trimer as a curing agent. ^[36] This investigation determined a feasible route to prepare hyperbranched polyesters involving citric acid (CA) and glycerol (GLC) monomers (CA-co-GLC) using a thermal polycondensation method. ^[37] Our results expand the utility of PHA-based pathways and provide biosynthetic access to α-branched polyesters to enrich the properties of bio-based sustainable polymers. ^[38] Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical applications. ^[39] Here we report the synthesis of a series of hyperbranched epoxy resins with different EEW (EHBP-n) through thiol-ene click reaction between thiol-ended hyperbranched polyesters and allylglycidyl ether. ^[40] Hyperbranched polyester was facilely synthesized via A2 and B3 technique. ^[41] For this purpose, the acrylic/melamine matrix of clearcoat was chemically modified by a hyperbranched polyester-amide (HBP). ^[42]

branched polyester polyol

The present study sought to obtain a hyperbranched polyester polyol derivative with fluorescent properties. ^[1] Three generations of hyperbranched polyester polyols are mixed with graphite oxide (GO) and the favorable interactions between the polymers and the solid surfaces lead to intercalated structure. ^[2] Boltorn™ HB20 (H0), a commercially available hyperbranched polyester polyol was selected as a scaffold and was functionalized with stearic acid (SA) and PLA in a two-step process. ^[3] Hyperbranched polyester polyols (HBPE) of second, third and forth generation were synthesized by procedures involving one step (HBPE-2), step by step (HBPE-3, HBPE-4). ^[4] These constructs were composed of tertiary amine-conjugated polycarbonate blocks "grafted from" a hyperbranched polyester polyol core. ^[5] To achieve that goal, a hyperbranched polyester polyol (HBP) of the second generation (HBP2G) was modified with MA to obtain HBP2GMA. ^[6]

branched polyester grafted

In this study, the hyperbranched polyester grafted graphene oxide (GO-H202) was synthesized, and the isotactic polypropylene/graphene oxide (iPP/GO) composites were prepared. ^[1] In this article, hyperbranched polyester grafted graphene oxide (GO) was successfully prepared. ^[2]

branched polyester nanocomposite

In this work, a method for the analysis of benzoylurea insecticides, including hexaflumuron, flufenoxuron, lufenuron and chlorfluazuron, in tea samples by high-performance liquid chromatography with Fe3 O4 -hyperbranched polyester nanocomposite as the adsorbent for magnetic solid-phase extraction was developed. ^[1] In this study, eco-friendly high performing waterborne hyperbranched polyester nanocomposites with different doses of clay@carbon dot nanohybrid were fabricated for the first time through an in situ polymerization technique in absence of any solvent and compatibilizing agent. ^[2]