Interpenetrating Polymer Networks Based on Castor Oil IX.

Patel, M.; Suthar, Bhikhu

doi:10.1295/polymj.20.1

Cited by 21 publications

(13 citation statements)

References 25 publications

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“…Castor oils were widely used in various IPNs due to the availability of the hydroxyl group which could be used for crosslinking. Thus, IPNs of polyacrylates with castor oil or polyesters with castor oil were prepared and were shown to have better mechanical and physical properties than the individual components . In addition to castor oil, other functionalized oils (vernonia oil, lesquerella oil, crambe oil, and linseed oil) were also used in IPNs with polystyrene and polyacrylics .…”

Section: Introductionmentioning

confidence: 99%

Interpenetrating polymers networks derived from silylated soybean oil and water soluble polysiloxanes

Dewasthale

Andrews

Narayan

et al. 2018

J of Applied Polymer Sci

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A series of interpenetrating polymer networks (IPNs) with different compositions were prepared from emulsions of silylated soybean oil (SilSoy) and hydrophilic polysiloxanes (HPPS). Silylation of the soybean oil was achieved via the “Ene reaction” and the water soluble polysiloxanes were prepared by hydrolysis and condensation polymerization of 3‐aminopropyldiethoxymethylsilane followed by a reaction with ethylene carbonate. Unlike the triglyceride structure of SilSoy, HPPS are water soluble, linear polysiloxanes having a pendant hydroxyl group on every siloxane. Evaporation of the water phase from emulsions of SilSoy in aqueous solutions of HPPS yielded crosslinked IPN films composed of silanols and carbinol condensations that formed stable siloxanes (SiOSi) crosslink linkages as well as hydrolysable silicone‐carbinol (SiOC) linkages. The entangled network that was obtained is characterized by intimate mixing of these incompatible phases with a typical IPN microphase separation. The crosslink density between the dispersed phase and the continuous phase was correlated with the swell‐gel data. The mechanical and thermal properties were also studied and were correlated with the composition and the crosslinks density. These IPNs can be used as convenient environmentally degradable control release systems via the hydrolysis of the SiOC linkages. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47182.

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Section: Introductionmentioning

confidence: 99%

Interpenetrating polymers networks derived from silylated soybean oil and water soluble polysiloxanes

Dewasthale

Andrews

Narayan

et al. 2018

J of Applied Polymer Sci

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“…These IPNs produced tough coatings with superior abrasion and chemical resistance. Several examples of castor oil IPNs with acrylates or polyesters have also been reported and these IPNs showed better mechanical and physical properties than the individual components . Other IPNs have been prepared from functionalized vernonia oil, lesquerella oil, crambe oil, and linseed oil (as well as their epoxidized derivatives) with polystyrene and polyacrylics .…”

Section: Introductionmentioning

confidence: 99%

Biobased interpenetrating polymers networks derived from oligomerized soybean oil and polydimethylsiloxane

Dewasthale

Graiver

Narayan

2014

J of Applied Polymer Sci

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A series of interpenetrating polymer networks (IPNs) with different compositions were prepared from silylated oligomerized soybean oil and silanol-terminated polydimethylsiloxane. Oligomerization of soybean oil was achieved by heating it with a catalyst in a Parr reactor at elevated temperatures. Vinyltrimethoxysilane was then grafted onto the oligomerized oil. Crosslinked films were obtained from solutions as the silanol groups between the two immiscible components condensed to form stable siloxanes linkages resulting in an entangled network characterized by microphase separation typical to IPNs. The crosslink density between the dispersed phase and the continuous phase was calculated from the average particle size of the dispersed phase. The mechanical and thermal properties were also studied and were found to be directly related to the composition and the crosslink density. These IPN resins can be used as high release liners, low friction materials, soft-feel coatings or as convenient one-package protective coatings.

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“…Castor oil (CO) is used commercially in large amounts, and its major constitution, ricinoleic acid (12-hydroxycis-9-octadecenoic acid), is a hydroxyl fatty acid [11]. There have been many studies on the synthesis and characterization of a wide variety of polymers, especially polyurethanes, based on CO and its derivatives such as Interpreting Polymer Networks [12][13][14], cast elastomers [15][16][17][18][19][20], and insulating coatings [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Novel Polyurethane Electrical Insulator Coatings Based on Amide-Ester-Ether Polyols Derived from Castor Oil and Re-cycled Poly(ethylene terphthalate)

Yeganeh

Moeini

2007

High Performance Polymers

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In order to utilize renewable resource raw materials as well as trying to recycle polymeric materials, three new polyols (PEEA1-3) were prepared. Bottle grade recycled poly(ethylene terphthalate) was subjected to transesterification and an amidation reaction with different molecular weights of poly(ethylene glycol) and diethanol amine. The intermediate hydroxyl-terminated compounds were chain extended via an esterification reaction with adipic acid and the products were reacted with castor oil. Polyurethane networks were prepared through the reaction of PEEA1-3 with librated isocyanate groups of a blocked isocyanate curing agent made from trimethylol propane, toluene diisocyanate and N-methyl aniline. All of the starting materials and final cured films were characterized by conventional methods. The curing condition was optimized via gel content measurements. The crosslink density of the samples was determined via an equilibrium swelling method, using the Flory-Rehner equations. The effects of structural parameters on the physical, electrical, mechanical, and dynamic mechanical properties of the polyurethane coatings were evaluated. Investigation of the results showed that the prepared green coatings have environmental benefits as well as high performance as metal insulator coatings.

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Interpenetrating Polymer Networks Based on Castor Oil IX.

Cited by 21 publications

References 25 publications

Interpenetrating polymers networks derived from silylated soybean oil and water soluble polysiloxanes

Interpenetrating polymers networks derived from silylated soybean oil and water soluble polysiloxanes

Biobased interpenetrating polymers networks derived from oligomerized soybean oil and polydimethylsiloxane

Novel Polyurethane Electrical Insulator Coatings Based on Amide-Ester-Ether Polyols Derived from Castor Oil and Re-cycled Poly(ethylene terphthalate)

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