Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods

2013 ◽  
Vol 46 (6) ◽  
pp. 2391-2398 ◽  
Author(s):  
Yi Shi ◽  
Wen Zhu ◽  
Yongming Chen
2021 ◽  
Vol 63 (4) ◽  
pp. 385-391
Author(s):  
T. K. Meleshko ◽  
A. B. Razina ◽  
N. N. Bogorad ◽  
M. P. Kurlykin ◽  
A. V. Kashina ◽  
...  

Abstract New polymer brushes with an ester backbone and poly(methyl methacrylate) side chains are synthesized by polycondensation and polymerization methods. The initiating groups are sulfonyl chloride groups laterally attached to the polyester chain. PMMA side chains are grafted by the ATRP method according to the “grafting from” multicenter macroinitiator strategy. The conditions for the polymerization processes in a controlled mode are selected, and the ways of targeted regulation of the degree of polymerization of methacrylate side chains are determined. Using the synthesized copolymers self-supporting films are obtained, and their physical and mechanical properties are studied.


2002 ◽  
Vol 727 ◽  
Author(s):  
Denys Usov ◽  
Manfred Stamm ◽  
Sergiy Minko ◽  
Christian Froeck ◽  
Andreas Scholl ◽  
...  

AbstractWe investigated the interplay between different mechanisms of the lateral and vertical segregation in the synthesized via “grafting from” approach symmetric A/B (where A and B are poly(styrene-co-2,3,4,5,6-pentafluorostyrene) and poly(methylmethacrylate), respectively) polymer brushes upon exposure to different solvents. We used X-ray photoemission electron spectroscopy and microscopy (X-PEEM), AFM, water contact angle measurements, and oxygen plasma etching to study morphology of the brushes. The ripple morphology after toluene (nonselective solvent) revealed elongated lamellar-like domains of A and B polymers alternating across the surface. The dimple-A morphology consisting of round clusters of the polymer A was observed after acetone (selective solvent for B). The top layer was enriched with the polymer B showing that the brush underwent both the lateral and vertical phase segregation. A qualitative agreement with predictions of SCF theory was found.


Polymer ◽  
2012 ◽  
Vol 53 (10) ◽  
pp. 1992-2000 ◽  
Author(s):  
Peng Zhao ◽  
Yechao Yan ◽  
Xiaoqin Feng ◽  
Lixin Liu ◽  
Chun Wang ◽  
...  

2018 ◽  
Vol 9 (6) ◽  
pp. 677-686 ◽  
Author(s):  
Shuangshuang Zhang ◽  
Yasuyuki Tezuka ◽  
Zhengbiao Zhang ◽  
Na Li ◽  
Wei Zhang ◽  
...  

Three main strategies used for the construction of cyclic grafted polymers, “grafting through”, “grafting onto”, and “grafting from”, are summarized.


2007 ◽  
Vol 40 (23) ◽  
pp. 8212-8219 ◽  
Author(s):  
Ying Zheng ◽  
Merlin L. Bruening ◽  
Gregory L. Baker

2008 ◽  
Vol 86 (6) ◽  
pp. 570-578 ◽  
Author(s):  
Sophie Nguyen

The use of the poly(3-hydroxyalkanoates) in copolymer synthesis has received much interest, as the microbial polyester segments can bring interesting properties, such as biodegradability and biocompatibility. The synthesis, properties, and applications of graft copolymers containing poly(3-hydroxyalkanoates) as main chain or branches are reviewed here, with emphasis on the different preparation methods, which fit into the three main synthesis strategies of graft copolymers: “grafting onto”, “grafting from”, and “grafting through” or macromonomer methods.Key words: poly(3-hydroxyalkanoates), graft copolymer, synthesis, properties, applications.


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