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Functional polymeric multilayers and...

Narkhede, Mahesh S.

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Functional polymeric multilayers and nanostructures.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Functional polymeric multilayers and nanostructures./
Author:	Narkhede, Mahesh S.
Description:	104 p.
Notes:	Source: Dissertation Abstracts International, Volume: 76-10(E), Section: B.
Contained By:	Dissertation Abstracts International76-10B(E).
Subject:	Plastics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3663236
ISBN:	9781321859911

Functional polymeric multilayers and nanostructures.
Narkhede, Mahesh S.

Functional polymeric multilayers and nanostructures. - 104 p.

Source: Dissertation Abstracts International, Volume: 76-10(E), Section: B.

Thesis (Ph.D.)--University of Massachusetts Lowell, 2015.

In this dissertation, we have utilized the versatility of layer-by-layer (LbL) assembly to explore the possibilities of obtaining flame retardant clothing using different flame retardant materials. Nanostructured bilayers comprising of common flame retardants such as polysiloxanes and phosphorous were fabricated by LbL technique. Thermal and flame retardant properties as well as performance of coated fabrics when exposed to methane flame were investigated. The polysiloxanes materials having pendant quaternary and primary amine groups and the phosphorous containing materials were utilized to produce synergy to improve the flame retardant performance of the coated fabrics. The coated fabrics were subsequently analyzed for thermal properties and flame retardant properties. The concentration of depositing solutions, number of bilayers on fabrics and flame retardant performance of coated fabrics when subjected to a pure methane flame were optimized.

ISBN: 9781321859911Subjects--Topical Terms:

649803
Plastics.

Functional polymeric multilayers and nanostructures.
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020 $a 9781321859911
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100 1 $a Narkhede, Mahesh S. $3 3182326
245 1 0 $a Functional polymeric multilayers and nanostructures.
300 $a 104 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-10(E), Section: B.
500 $a Adviser: Jayant Kumar.
502 $a Thesis (Ph.D.)--University of Massachusetts Lowell, 2015.
520 $a In this dissertation, we have utilized the versatility of layer-by-layer (LbL) assembly to explore the possibilities of obtaining flame retardant clothing using different flame retardant materials. Nanostructured bilayers comprising of common flame retardants such as polysiloxanes and phosphorous were fabricated by LbL technique. Thermal and flame retardant properties as well as performance of coated fabrics when exposed to methane flame were investigated. The polysiloxanes materials having pendant quaternary and primary amine groups and the phosphorous containing materials were utilized to produce synergy to improve the flame retardant performance of the coated fabrics. The coated fabrics were subsequently analyzed for thermal properties and flame retardant properties. The concentration of depositing solutions, number of bilayers on fabrics and flame retardant performance of coated fabrics when subjected to a pure methane flame were optimized.
520 $a The spin coating technology was used to fabricate polymeric multilayer stacks to produce iridescence green color of beetle known as Agrilus planipennis---commonly known as the emerald ash borer (EAB). The iridescence green color was achieved on a PET sheet by fabricating Bragg's multilayer structure using polyvinyl cinnamate (PVCN) and polyvinyl alcohol (PVA) solutions. These two polymers were chosen because their refractive index differs by more than 0.17 which is important for obtaining iridescence color and they dissolve in orthogonal solvents. These PET sheets with iridescence green color was converted into beetle decoys using hot stamping and forming process at Penn State University. These beetle decoys were field deployed to attract and trap male EAB beetles to obtain a relative population of beetles per unit area.
520 $a Lastly, electrospinning technique was used to produce polymer nanofibers scaffold which acted as a template for the fabrication of silver nanotubes under ambient conditions. This is a significant improvement over the high vacuum and high temperature processes used earlier for obtaining silver nanotubes. Electrospun Poly acrylonitrile (PAN) was used as the nanofiber scaffold to make silver nanotubes. The PAN nanofibers were dipped into silver salt precursor solution following addition of reducing solution to deposit silver onto nanofibers. The concentration of silver salt and the reducing agent in the deposition solution and deposition time were optimized to get conformal silver coating on nanofibers. The silver coated nanofibers were dissolved in solvent to remove the nanofiber scaffold and silver nanotubes were formed. The whole process was carried out under ambient conditions. These silver coated nanofibers and silver nanotubes were characterized using scanning electron microscopy and other characterization techniques.
590 $a School code: 0111.
650 4 $a Plastics. $3 649803
650 4 $a Materials science. $3 543314
650 4 $a Chemical engineering. $3 560457
690 $a 0795
690 $a 0794
690 $a 0542
710 2 $a University of Massachusetts Lowell. $3 1017839
773 0 $t Dissertation Abstracts International $g 76-10B(E).
790 $a 0111
791 $a Ph.D.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3663236