scholarly journals Triazole-based cross-linkers in radical polymerization processes: tuning mechanical properties of poly(acrylamide) and poly(N,N-dimethylacrylamide) hydrogels

RSC Advances ◽  
2018 ◽  
Vol 8 (60) ◽  
pp. 34743-34753 ◽  
Author(s):  
Tobias Götz ◽  
Nicole Schädel ◽  
Nadja Petri ◽  
Manuel Kirchhof ◽  
Ursula Bilitewski ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
End Groups ◽  
Poly Acrylamide

Poly(acrylamide) and poly(N,N-dimethylacrylamide) hydrogels were prepared by free-radical polymerization using triazole-based cross-linkers with different spacer lengths and functional end groups and hydrogel properties were assessed.

Persulfate initiated free-radical polymerization of itaconic acid: Kinetics, end-groups and side products

2018 ◽  
Vol 106 ◽  
pp. 63-71 ◽  
Author(s):  
Szczepan Bednarz ◽  
Angelika Wesołowska-Piętak ◽  
Rafał Konefał ◽  
Tomasz Świergosz
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Itaconic Acid ◽  
Free Radical Polymerization ◽  
End Groups

Thermally driven directional free-radical polymerization in confined channels

2019 ◽  
Vol 10 (8) ◽  
pp. 920-925
Author(s):  
Preeta Datta ◽  
Kirill Efimenko ◽  
Jan Genzer
Keyword(s):  
Molecular Weight ◽  
Free Radical ◽  
Radical Polymerization ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Free Radical Polymerization ◽  
Narrow Molecular Weight Distribution ◽  
Thermally Driven ◽  
Poly Acrylamide

We report on the formation of poly(acrylamide) (PAAm) with a relatively-narrow molecular weight distribution (MWD) by means of thermally-driven directional free-radical polymerization carried out in polymerization chambers featuring two parallel glass walls separated by various distances, ranging from sub-millimeter to a few millimeters.

Improving the knowledge and design of end groups in polymers produced by free radical polymerization

1998 ◽  
Vol 9 (1) ◽  
pp. 94-100 ◽  
Author(s):  
W. Ken Busfield ◽  
Ian D. Jenkins ◽  
Tomoyuki Nakamura ◽  
Michael J. Monteiro ◽  
Ezio Rizzardo ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
End Groups

Synthetic Routes to 3,9-Dimethylidene-1,5,7,11-tetrathiaspiro[5.5]undecane

1996 ◽  
Vol 49 (11) ◽  
pp. 1261 ◽  
Author(s):  
MK Bromley ◽  
SJ Gason ◽  
AG Jhingran ◽  
MG Looney ◽  
DH Solomon
Keyword(s):  
Mechanical Properties ◽  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Refractive Indices ◽  
Bicyclic Structure ◽  
Synthetic Routes

Spiro orthocarbonates ( SOCs ) have been widely studied, particularly as monomers which on polymerization undergo minimal shrinkage. Of particular interest has been the dimethylidene SOC because, unlike the parent SOC, it is amenable to free-radical polymerization. The incorporation of other hetero atoms, particularly sulfur, into the bicyclic structure offers the potential of polymers with improved refractive indices and mechanical properties. However, whilst literature methods are available for the spiro tetrathioorthocarbonates ( STOCs ),3 the synthesis of a methylidene derivative has not been reported. In this communication we report the synthesis of 3,9-dimethylidene-1,5,7,11-tetra-thiaspiro[5.5] undecane (DMSTOC) (1).

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

Critically evaluated rate coefficients for free-radical polymerization, 3. Propagation rate coefficients for alkyl methacrylates

2000 ◽  
Vol 201 (12) ◽  
pp. 1355-1364 ◽  
Author(s):  
Sabine Beuermann ◽  
Michael Buback ◽  
Thomas P. Davis ◽  
Robert G. Gilbert ◽  
Robin A. Hutchinson ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Alkyl Methacrylates

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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