In an article, author is Azmeera, Venkanna, once mentioned the application of 146439-94-3, SDS of cas: 146439-94-3, Name is H-SER-ILE-LYS-VAL-ALA-VAL-OH, molecular formula is C8H9FO, molecular weight is 615.76, MDL number is N/A, category is chiral-catalyst. Now introduce a scientific discovery about this category.
To prepare amphiphilic block copolymers consisting of biocompatible and biodegradable segments, herein we report synthesis of diblock copolymers having epsilon-caprolactone (epsilon-CL) repeating units in one block and amino acid-based acrylate monomers in another segment. The block copolymers were prepared by a combination of metal-free ring-opening polymerization (ROP) of epsilon-CL and reversible addition-fragmentation chain transfer (RAFT) polymerization oftert-butyloxycarbonyl (Boc)-alanine/Boc-leucine based acrylate monomers. The ROP of epsilon-CL was initiated with diphenyl phosphate (DPP) as a metal-free catalyst in conjunction with a heterofunctional initiator, benzyl-2-hydroxyethyl carbonotrithioate, produced trithiocarbonate terminated poly(epsilon-caprolactone) (PCL). This was further employed as macro-chain transfer agent for the synthesis of side chain amino acid containing blockviaRAFT. Deprotection of Boc group pendants from the block copolymers under acidic conditions at room temperature provided pH responsive block copolymers with positively charged cationic primary amine functionalities. Furthermore, self-assembling nature of these block copolymers in aqueous medium was examined through dynamic light scattering (DLS) and field emission-scanning electron microscopy (FE-SEM). Graphic
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Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare