Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 585-88-6, Name is Maltitol, SMILES is OC[C@H](O)[C@@H](O)[C@H](O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1)[C@H](O)CO, in an article , author is Shi Xiaoyu, once mentioned of 585-88-6, Safety of Maltitol.
Controllable Synthesis of Amphiphilic Block Copolymer PMnEOS-b-PAA and co-Assembly Morphologies of PMDEOS-b-PAA/PS-b-PAA
The co-assembly of polymers has attracted increasing attention due to the ability of generating diverse assembly morphology. This paper describes the synthesis and self-assembly of several novel amphiphilic block copolymers (PMnEOS-b-PAA, n=1-3) as well as co-assembly of PMDEOS-b-PAA with typical polystyrene-b-polyacrylic acid (PS-b-PAA). Namely, these block copolymers were fabricated by reversible addition fragmentation chain transfer (RAFT) polymerization of functionalized styrene bearing different glycol units on the para-position and acrylic acid, and characterized by H-1 nuclear magnetic resonance spectrum (H-1 NMR). The thermo-responsive and pH-responsive properties of these block copolymers were then investigated, and they showed good thermo- and pH- responsiveness. Furthermore, as a comparison, the self-assembly actions of these block copolymers were also examined in tetrahydrofuran (THF)/H2O and THF/toluene (PhMe) , respectively. It was found that the different block copolymers with different glycol units displayed various morphologies, especially in two different solvent systems. More interestingly, the co-assembly action of PMDEOS-b-PAA/PS-b-PAA( mass ratio 1: 1) in a mixture of THF-PhMe( volume ratio 2: 1) was detaily studied and a new spherical nanoparticle with uniformly distributed internal channel and smooth surface was found. Also, this coassembly morphology could be well repeated. The corresponding self- and co-assembly mechanisms were also proposed. This novel co-assembly mode would have potential application for further supporting catalysts, small molecules recognition and release in industry.
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Reference:
Tetrahydropyran – Wikipedia,
,Tetrahydropyran – an overview | ScienceDirect Topics