Park, Jaemin; Nam, Jiyun; Seo, Myungeun; Li, Sheng published the artcile< Side-Chain Density Driven Morphology Transition in Brush-Linear Diblock Copolymers>, Electric Literature of 71195-85-2, the main research area is side chain density morphol transition brush linear diblock copolymer.
We report the synthesis and self-assembly of brush-linear diblock copolymers with variable side-chain length and d. Poly(pentafluorophenyl acrylate-g-ethylene glycol)-b-polystyrene ((PPFPA-g-PEG)-b-PS) brush-linear diblock copolymers are prepared by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization of PPFPA and PS, followed by postpolymn. reaction between the precursor PPFPA-b-PS diblock copolymer and amine-functionalized PEG. By controlling the PEG chain length and the degree of substitution, brush-linear diblock copolymers with different side-chain lengths and densities are obtained. The solid-state morphologies of the diblocks are then examined by small-angle X-ray scattering (SAXS). At low PEG side-chain d., the segregation of PEG and PS away from PPFPA leads to the formation of PEG and PS lamellar domains with PPFPA in the interface. At high PEG side-chain d., the segregation is between the PPFPA-g-PEG brush block and the PS linear block, and the domain morphol. is determined by the composition of the brush block. A partial exptl. phase diagram is presented, and it illustrates the importance of both side-chain length and d. on the microdomain morphol. of brush-linear diblock copolymers.
ACS Macro Letters published new progress about Acrylic polymers, fluorine-containing, block, diblock Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 71195-85-2 belongs to class esters-buliding-blocks, and the molecular formula is C9H3F5O2, Electric Literature of 71195-85-2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics