Amphiphilic Polymethacrylate Model Co-Networks:  Synthesis by RAFT Radical Polymerization and Characterization of the Swelling Behavior

2006 ◽  
Vol 39 (7) ◽  
pp. 2467-2473 ◽  
Author(s):  
Theodora C. Krasia ◽  
Costas S. Patrickios
Keyword(s):  
Radical Polymerization ◽  
Swelling Behavior

scholarly journals Characterization of swelling behavior of carbon nano-filler modified polydimethylsiloxane composites

2021 ◽  
pp. 009524432110061
Author(s):  
Bo Yang ◽  
Balakrishnan Nagarajan ◽  
Pierre Mertiny
Keyword(s):  
Digital Image Analysis ◽  
Swelling Behavior ◽  
Optical Measurements ◽  
Natural Phenomenon ◽  
Cross Linking ◽  
Dimensional Changes ◽  
Experimental Findings ◽  
Carbon Based

Polymers may absorb fluids from their surroundings via the natural phenomenon of swelling. Dimensional changes due to swelling can affect the function of polymer components, such as in the case of seals, microfluidic components and electromechanical sensors. An understanding of the swelling behavior of polymers and means for controlling it can improve the design of polymer components, for example, for the previously mentioned applications. Carbon-based fillers have risen in popularity to be used for the property enhancement of resulting polymer composites. The present investigation focuses on the effects of three carbon-based nano-fillers (graphene nano-platelets, carbon black, and graphene nano-scrolls) on the dimensional changes of polydimethylsiloxane composites due to swelling when immersed in certain organic solvents. For this study, a facile and expedient methodology comprised of optical measurements in conjunction with digital image analysis was developed as the primary experimental technique to quantify swelling dimensional changes of the prepared composites. Other experimental techniques assessed polymer cross-linking densities and elastic mechanical properties of the various materials. The study revealed that the addition of certain carbon-based nano-fillers increased the overall swelling of the composites. The extent of swelling further depended on the organic solvent in which the composites were immersed in. Experimental findings are contrasted with published models for swelling prediction, and the role of filler morphology on swelling behavior is discussed.

Molecular Weight Characterization of Poly(N-isopropylacrylamide) Prepared by Living Free-Radical Polymerization

2000 ◽  
Vol 33 (18) ◽  
pp. 6738-6745 ◽  
Author(s):  
François Ganachaud ◽  
Michael J. Monteiro ◽  
Robert G. Gilbert ◽  
Marie-Anne Dourges ◽  
San H. Thang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Free Radical ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Living Free Radical Polymerization

Synthesis and Characterization of Core Cross-Linked Star Clusters by Conventional Free-Radical Polymerization

2007 ◽  
Vol 40 (22) ◽  
pp. 7819-7826 ◽  
Author(s):  
Tor Kit Goh ◽  
Adrian P. Sulistio ◽  
Anton Blencowe ◽  
Jeffery W. Johnson ◽  
Greg G. Qiao
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Star Clusters ◽  
Free Radical Polymerization ◽  
Synthesis And Characterization
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