Cross-Linking 3D Assemblies of Nanoparticles into Mechanically Strong Aerogels by Surface-Initiated Free-Radical Polymerization

2008 ◽  
Vol 20 (15) ◽  
pp. 5035-5046 ◽  
Author(s):  
Sudhir Mulik ◽  
Chariklia Sotiriou-Leventis ◽  
Gitogo Churu ◽  
Hongbing Lu ◽  
Nicholas Leventis
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Cross Linking

scholarly journals Poly (Butyl Acrylate)-Graft-Polystyrene Synthesis by Free-Radical Polymerization: Interplay between Structure, Morphology, Mechanical, and Optical Properties

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1317 ◽  
Author(s):  
J. Fage ◽  
K. Knoll ◽  
N. Niessner ◽  
O. Carstensen ◽  
T. Schulz ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Free Radical ◽  
Radical Polymerization ◽  
Butyl Acrylate ◽  
Free Radical Polymerization ◽  
Cross Linking ◽  
Analogous Reaction ◽  
Transmission Electron ◽  
Structure Morphology ◽  
Reactive Groups

We report a new method of preparation of poly (butyl acrylate)-g-polystyrene/polystyrene blends by free-radical polymerization. Copolymerization of glycidyl (meth)acrylate with butyl acrylate is followed by a polymer analogous reaction of this copolymer with acrylic acid and subsequent copolymerization of the modified backbone with styrene. Investigation on the number of reactive groups per backbone chain and its molecular weight allows grafting efficiencies of about 35% to be reached, as well as low cross-linking. Blends of nanophase-separated copolymers having a backbone with Mn of around 50 kg/mol and 4 reactive groups per chain are transparent, with haze as low as 14%, tensile strength of around 22 MPa, and elongations at the break of around 3%. Correlation between morphology determined by transmission electron microscopy and properties of the blend is established.

scholarly journals Combination of supramolecular cross-linking with covalent cross-linking through epoxide ring-opening including gel studies

e-Polymers ◽  
2003 ◽  
Vol 3 (1) ◽  
Author(s):  
Harald Hofmeier ◽  
Abdelkrim El-ghayoury ◽  
Ulrich S. Schubert
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Ring Opening ◽  
Free Radical Polymerization ◽  
Epoxide Ring ◽  
Cross Linking ◽  
Swelling Behaviour ◽  
Epoxide Ring Opening ◽  
Different Order

Abstract Terpolymers based on poly(methyl methacrylate), containing terpyridinemoieties as well as epoxide groups, were synthesized via free-radical polymerization. The products were cross-linked non-covalently with iron(II) ions and covalently by treatment with AlCl3. Both steps could be combined in different order. The non-covalent cross-linking could be reversed by applying a strong competing ligand. The swelling behaviour of the polymers was investigated.

Non-isothermal Kinetics of Free Radical Polymerization of 2-Phenylethyl (Meth)acrylate

2018 ◽  
Vol 8 (3) ◽  
pp. 585-594
Author(s):  
Khdbudin Mulani ◽  
Ravindra Ghorpade ◽  
Surendra Ponrathnam ◽  
Nayaku Chavan ◽  
Kamini Donde
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Isothermal Kinetics ◽  
Kinetics Of

Oxygen-Initiated Free-Radical Polymerization of Alkyl Acrylates at High Temperatures

2021 ◽  
Author(s):  
Shi Liu ◽  
Lauren Chua ◽  
Ahmad Arabi Shamsabadi ◽  
Patrick Corcoran ◽  
Abhirup Patra ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
High Temperatures ◽  
Free Radical Polymerization ◽  
Alkyl Acrylates
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