scholarly journals The crystallinity, thermal properties and microscopic morphology of di-block copolymers of l-lactide and several acrylates

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 31934-31946 ◽  
Author(s):  
Wei-Wei Wang ◽  
Long Jiang ◽  
Wu-Yang Ren ◽  
Chun-Mei Zhang ◽  
Chang-Zhen Man ◽  
...  

Di-block copolymers of l-lactide and (meth)acrylate were synthesized from PLLA macroinitiators, and the microphase separation of copolymers was observed.

2015 ◽  
Vol 6 (9) ◽  
pp. 1445-1453 ◽  
Author(s):  
J. P. MacDonald ◽  
M. P. Parker ◽  
B. W. Greenland ◽  
D. Hermida-Merino ◽  
I. W. Hamley ◽  
...  

Four alkyl substituted β-lactones were investigated in ring opening polymerisation to produce a family of poly(3-hydroxyalkanoate)s and their block copolymers.


2010 ◽  
Vol 43 (21) ◽  
pp. 8957-8964 ◽  
Author(s):  
Georgy Grancharov ◽  
Olivier Coulembier ◽  
Mathieu Surin ◽  
Roberto Lazzaroni ◽  
Philippe Dubois

2012 ◽  
Vol 512-515 ◽  
pp. 2127-2130
Author(s):  
Li Huo ◽  
Cai Xia Dong

The mechanical properties were investigated of a series of PA-PEG thermalplastic elastomer based on PA1010 and polytetramethylene glycol (PEG) with varying hard and soft segment content. Dynamic mechanical measurements of these polymers have carried out over a wide range of temperatures. The block copolymers exhibit three peaks, designated as α, β and γ in the tanδ-temperature curve. The α transition shifts to higher temperature with increasing hard block molecular weight. However, at a constant hard molecular weight, the α transition shifts to higher temperature and the damping increases on increasing the soft segment molecular weight. DMA results show that the block copolymers exhibit a microphase separation structure and both soft and hard segments were found to be crystallizable. The degree of phase separation increases with increasing hard block molecular weight.


RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1514-1521 ◽  
Author(s):  
Xiaokang Li ◽  
Feng Huang ◽  
Tao Jiang ◽  
Xiaohua He ◽  
Shaoliang Lin ◽  
...  

The microphase separation of side chain liquid crystalline (SCLC) block copolymers was studied using dissipative particle dynamics (DPD) simulations.


2019 ◽  
Vol 10 (46) ◽  
pp. 6254-6259 ◽  
Author(s):  
Ellis Hancox ◽  
Evelina Liarou ◽  
James S. Town ◽  
Glen R. Jones ◽  
Siân A. Layton ◽  
...  

Fluoro-polyacrylic acid block copolymers with vary narrow dispersity are shown to have sub-2 nm domain sizes on phase separation.


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