Facile synthesis and chiral recognition of block and star copolymers containing stereoregular helical poly(phenyl isocyanide) and polyethylene glycol blocks

2017 ◽  
Vol 8 (14) ◽  
pp. 2152-2163 ◽  
Author(s):  
Na Liu ◽  
Cui-Hong Ma ◽  
Rui-Wen Sun ◽  
Jian Huang ◽  
Chonglong Li ◽  
...  

A new Pd(ii) initiator bearing an alkyne headgroup was designed and synthesized.

2016 ◽  
Vol 7 (40) ◽  
pp. 6154-6158 ◽  
Author(s):  
Da Huang ◽  
Fei Yang ◽  
Xing Wang ◽  
Hong Shen ◽  
Yezi You ◽  
...  

Well-defined POSS hybrid polyacetal dendrimers functionalized with terminal polyethylene glycol and zwitterion could assemble into pH-responsive degradable micelles and nanofibers.


2018 ◽  
Vol 13 (6) ◽  
pp. 06D407 ◽  
Author(s):  
Sean Harvey ◽  
David Yuen Wah Ng ◽  
Jolanta Szelwicka ◽  
Lisa Hueske ◽  
Lothar Veith ◽  
...  

2009 ◽  
Vol 50 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Feifei Tao ◽  
Cuiling Gao ◽  
Zheng Xu ◽  
Ziling Xue

2021 ◽  
Vol 12 (15) ◽  
pp. 2335-2345
Author(s):  
Haihui Li ◽  
Haitao Zhao ◽  
Lan Yao ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  

A facile strategy of synthesizing star copolymers was successfully established via photocontrolled BIT-RDRP. The obtained copolymers have well-defined four-arm amphiphilic block architecture and can form stable unimolecular micelles in water.


2017 ◽  
Vol 70 (12) ◽  
pp. 1291 ◽  
Author(s):  
Norma A. Cortez-Lemus ◽  
Angel Licea-Claverie

Star-shaped poly(N-vinylcaprolactam)-block-poly(ethylhexylacrylate)-block-polyethylene glycol (PNVCL-b-PEHA-b-PEG) triblock copolymers and star-shaped poly(N-vinylcaprolactam)-block-polyethylene glycol (PNVCL-b-PEG) diblock copolymers were synthesized by reversible addition–fragmentation chain transfer (RAFT) polymerization. The resulting star block copolymers were characterized using 1H NMR and UV-vis spectroscopy, gel permeation chromatography, and dynamic light scattering. The star-shaped PNVCL-b-PEG and PNVCL-b-PEHA-b-PEG block copolymers self-assemble spontaneously into aggregates in water. The aggregates formed ranged from ~17 to 135 nm in diameter and were used to encapsulate methotrexate (MTX). It was observed that the aggregates from PNVCL-b-PEHA-b-PEG copolymers exhibited a higher drug loading and a lower release of MTX (19 wt-% and 54 %) as compared with star copolymers without PEHA (5 wt-% and 81 %) after 24 h at a temperature below their lower critical solution temperature values.


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