scholarly journals Novel Synthetic Approach to the Blocksil Siloxane Copolymers

INEOS OPEN ◽  
2021 ◽  
Author(s):  
N. V. Sergienko ◽  
◽  
N. V. Polshchikova ◽  
M. I. Buzin ◽  
V. M. Kotov ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Block Copolymers ◽  
Synthetic Approach

A novel synthetic approach to the block copolymers bearing diorganosiloxane and organosilsesquioxane blocks is suggested that obviates the need for using organochlorosilane precursors. A series of the polymers with different combinations of oligodimethylsiloxane and oligomethylphenylsiloxane flexible blocks with methylsilsesquioxane and phenylsilsesquioxane rigid blocks is prepared. The thermal properties of the films obtained from these polymers are explored.

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 ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Block Copolymers ◽  
Microphase Separation ◽  
Microscopic Morphology

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

A Versatile Synthetic Approach to Polypeptide Based Rod−Coil Block Copolymers by Click Chemistry

2007 ◽  
Vol 40 (16) ◽  
pp. 5653-5661 ◽  
Author(s):  
Willy Agut ◽  
Daniel Taton ◽  
Sébastien Lecommandoux
Keyword(s):  
Block Copolymers ◽  
Click Chemistry ◽  
Synthetic Approach

Rod-coil block copolymers: An iterative synthetic approach via living free-radical procedures

2003 ◽  
Vol 41 (22) ◽  
pp. 3640-3656 ◽  
Author(s):  
Padma Gopalan ◽  
Xuefa Li ◽  
Mingqi Li ◽  
Christopher K. Ober ◽  
Chad P. Gonzales ◽  
...  
Keyword(s):  
Free Radical ◽  
Block Copolymers ◽  
Synthetic Approach

Synthesis and thermal properties of triblock copolymers of methyl methacrylate using combination of anionic and controlled radical polymerization: Poly(methyl methacrylate) center block bearing different microstructures

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhengji Song ◽  
Carole Pelletier ◽  
Yinghua Qi ◽  
Jasim Ahmed ◽  
Sunil K. Varshney ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Thermal Properties ◽  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Triblock Copolymers ◽  
Controlled Radical Polymerization ◽  
Alkyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
H Nmr

AbstractABA and/or ABC type triblock copolymers were synthesized by living anionic and controlled radical polymerization in which poly(methyl methacrylate) was used as central block. The structural composition of these block copolymers were determined by 1H NMR. The block length/molecular weight and microstructure of these polymers were measured by SEC. The microstructure of resultant central alkyl methacrylate block can be tailored from highly syndiotactic to highly isotactic structure by varying the solvent and/or initiator. The thermal and rheological properties of center poly(methyl methacrylate) block and poly(styreneb- methyl methacrylate-b- styrene) tri block copolymers were studied in detail.

scholarly journals Tuning thermal properties and microphase separation in aliphatic polyester ABA copolymers

2015 ◽  
Vol 6 (9) ◽  
pp. 1445-1453 ◽  
Author(s):  
J. P. MacDonald ◽  
M. P. Parker ◽  
B. W. Greenland ◽  
D. Hermida-Merino ◽  
I. W. Hamley ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Block Copolymers ◽  
Ring Opening ◽  
Microphase Separation ◽  
Aliphatic Polyester

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

scholarly journals Computational Determination of Macroscopic Mechanical and Thermal Material Properties for Different Morphological Variants of Cast Iron

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1588
Author(s):  
Christoph Herrmann ◽  
Stefan Schmid ◽  
Daniel Schneider ◽  
Michael Selzer ◽  
Britta Nestler
Keyword(s):  
Thermal Properties ◽  
Cast Iron ◽  
Synthetic Approach ◽  
Mechanical And Thermal Properties ◽  
Data Infrastructure ◽  
Temperature Range ◽  
Young’S Moduli ◽  
Graphite Morphology ◽  
Grey Cast ◽  
Morphological Variants

The sensitivity of macroscopic mechanical and thermal properties of grey cast iron is computationally investigated for a variety of graphite morphologies over a wide temperature range. In order to represent common graphite morphologies according to EN ISO 945-1, a synthetic approach is used to algorithmically generate simulation domains. The developed mechanical and thermal model is applied in a large simulation study. The study includes statistical volume elements of the graphite morphology classes GJL-150 and IA2 to IA5, with 10, 11 and 12  v.−% of graphite precipitations, respectively, for a temperature range from 20 to 750 °C. Homogenised macroscopic quantities, such as the Young’s moduli, Poisson’s ratios, yield strengths and thermal conductivities, are predicted for different morphology classes by applying simulation and data analysis tools of the research data infrastructure Kadi4Mat. This is the first work to determine the mechanical and thermal properties of the morphology classes defined in EN ISO 945-1.

Thermal properties of a new class of block copolymers based on segments of poly(d,l-lactic-glycolic acid) and poly(ε-caprolactone)

2000 ◽  
Vol 36 (5) ◽  
pp. 901-908 ◽  
Author(s):  
Maurizio Penco ◽  
Luciana Sartore ◽  
Fabio Bignotti ◽  
Salvatore D’Antone ◽  
Luca Di Landro
Keyword(s):  
Thermal Properties ◽  
Block Copolymers ◽  
Glycolic Acid ◽  
New Class
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