Hyperbranched aliphatic polyester grafted attapulgite via a melt polycondensation process
Source abstract
Abstract
Abstract A new process for the facile fabrication of the hyperbranched polymer grafted nano-surfaces was developed in the present work. The AB2 type monomer, 2, 2-bis(hydroxymethyl)propionic acid (bis-MPA), was successfully grafted from the surfaces of the amino groups modified attapulgite nano-fibrillar clay (amino-ATP) via a melt polycondensation method with p-toluenesulfonic acid (p-TSA) as catalyst. Higher percentage of grafting (PG%) was achieved within shorter polymerizing time, compared with the product from the solution polycondensation method within longer polymerizing time. The surface composition and crystal structure of the hyperbranched aliphatic polyester grafted attapulgite (HAPE-ATP) were also characterized by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The transmission electron microscopy (TEM) analysis results showed that the dispersibility of the nano-fibrillar clay in organic solvent was improved after the graft polymerization.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Dendrimers and Hyperbranched Polymers · RNA Interference and Gene Delivery · Synthesis and properties of polymers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Micrometer-scale patterning of multiple dyes on hyperbranched polymer thin films using photoacid-based lithography10.1021/la9909906 ↗
2. About dendrimers: structure, physical properties, and applications10.1021/cr970069y ↗
3. Synthesis and characterization of surface-grafted, hyperbranched polymer films containing fluorescent, hydrophobic, ion-binding, biocompatible, and electroactive groups10.1021/la961098r ↗
4. Surface modification of clays and clay–rubber composite10.1016/S0169-1317(99)00020-4 ↗
5. Molecular size distribution in three dimensional polymers. VI. Branched polymers containing A–R–Bf-1 type units10.1021/ja01131a008 ↗
6. Electrostatic immobilization of glucose oxidase in a weak acid, polyelectrolyte hyperbranched ultrathin film on gold: fabrication, characterization, and enzymatic activity10.1021/ac981300q ↗
7. A new convergent approach to dendritic macromolecules10.1039/C39900001010 ↗
8. Grafting of swelling clay materials with 3-aminopropyltriethoxysilane10.1016/j.jcis.2005.02.092 ↗
9. Aqueous dispersions of silane-functionalized laponite clay platelets. A first step toward the elaboration of water-based polymer/clay nanocomposites10.1021/la0349267 ↗
10. Silylation of laponite clay particles with monofunctional and trifunctional vinyl alkoxysilanes10.1039/b415618h ↗
11. Water soluble hyperbranched polyphenylene: a unimolecular micelle?10.1021/ja00167a094 ↗
12. Hyperbranched polyphenylenes10.1021/ma00047a001 ↗
13. Imprinting of nanopores in organosilicate dielectric thin films with hyperbranched ketalized polyglycidol10.1016/j.polymer.2005.06.024 ↗
14. Preparation of dendrimer-like or hyperbranched polymers grafted inorganic nanoparticles: a literature review10.1080/14328917.2005.11784912 ↗
15. Hyperbranched aliphatic polyester grafted silica nanoparticles by a facile one-pot method10.1142/S0218625X05007517 ↗
16. Liu, P., Guo, J.S., 2006. Polyacrylamide grafted attapulgite (PAM-ATP) via surface-initiated atom transfer radical polymerization (SI-ATRP) for removal of Hg(II) ion and dyes. Colloids Sur. A: Physicochem. Eng. Aspects, 282–283, 498–503.10.1016/j.colsurfa.2006.02.052 ↗
17. Fabrication dendrimer-like PAMAM based silica nanoparticles10.1002/cjoc.20030210747 ↗
18. Self-assembly of functional silanes onto nano-sized silica
19. Facile preparation and characterization of hyperbranched poly(amine ester) grafted silica nanoparticles10.1023/B:JMSC.0000030749.58598.e8 ↗
20. Preparation of poly(propyleneimine) dendrimer immobilized silica gel and its application as novel microcolumn packing for the on-line FI preconcentration and separation of platinum10.1002/adic.200590080 ↗
21. The synthesis of immobilised chiral dendrimers10.1039/b008597i ↗
22. Asymmetric hydroformylation of olefins in a highly cross-linked polymer matrix10.1021/ja973408d ↗
23. Designable size exclusion chromatography columns based on dendritic polymer-modified porous silica particles10.1021/cm0302936 ↗
24. Influence of dispersing medium on grafting of aminopropyltriethoxysilane in swelling clay materials10.1016/j.jcis.2005.12.049 ↗
25. Assembly of supramolecular polymers in ultrathin films10.1016/S0079-6700(96)00005-6 ↗
26. Dendritic macromolecules at interfaces10.1002/(SICI)1521-4095(199802)10:3<253::AID-ADMA253>3.0.CO;2-E ↗
27. Synthesis and characterization of covalently functionalized laponite clay10.1021/cm050306a ↗
28. Preparation of dendrimer-like polyamidoamine immobilized silica gel and its application to online preconcentration and separation palladium prior to FAAS determination10.1016/j.talanta.2003.10.011 ↗
29. Morphological investigation of thermosets toughened with novel thermoplastics. I. Bismaleimide modified with hyperbranched polyester10.1002/(SICI)1097-4628(19990523)72:8<1065::AID-APP11>3.0.CO;2-2 ↗
30. Yan · 1981
31. Synthesis and characterization of novel hyperbranched polymer with dipole carbazole moieties for multifunctional materials10.1002/(SICI)1099-0518(199605)34:7<1359::AID-POLA26>3.0.CO;2-7 ↗
32. Encapsulation and controlled release of a hydrophobic drug using a novel nanoparticle-forming hyperbranched polyester10.1002/mabi.200500015 ↗