Wang, Wen-Li; Jin, Ren-Hua published the artcile< Synthesis and self-assembly of amphiphilic comb-copolymers possessing polyethyleneimine and its derivatives: Site-selective formation of loop-cluster covered vesicles and flower micelles>, Formula: C9H9Cl, the main research area is comb copolymer polyethyleneimine derivative vesicle flower micelle.
Amphiphilic block copolymers have attracted a considerable amount of attention in the past two decades because of their ability to self-organize into various complex nanostructures. Most of these studies concentrated on linear amphiphilic block copolymers. In this work, we focused our attention on two type unique comb-like copolymers which grafting amphiphilic diblocked side chains onto main chain of polystyrenic backbone. One is Type-I in which a block of hydrophilic polymers is located inside near to the backbone while other block of hydrophobic poly (phenyl-2-oxazoline) [PPOZ] is in outside far away the backbone. The other one is Type-O in which the hydrophobic block of PPOZ is grafted (inside) onto the main chain backbone then the hydrophilic block is joined (outside) on the PPOZ. A series of five kinds of Type-I and five kinds of Type-O comb-like block copolymers with different components of the amphiphiles were prepared We performed self-assembly of them in a DMF/water or methanol/water (volume/volume, 1/9) media. All of Type-O comb-like block copolymers formed micelle. In contrast, in the case of Type-I, interestingly, the comb-like block copolymers possessing hydrophilic blocks with crystalline feature formed loop-cluster covered vesicles, while the others having non-crystalline hydrophilic blocks formed flower-like micelle. We proposed the self-organizing mechanism of these two types comb-like block copolymers and provides new mol. design strategy for the site-selective fabrication of vesicle/micelle possessing special surface structures.
Polymer published new progress about Crystallinity. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Formula: C9H9Cl.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics