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Synthesis And Characterization Of Liquid Crystalline Polysiloxanes Containing Benzyl Ether Mesogens
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Book Synopsis Synthesis and Characterization of Liquid Crystalline Polysiloxanes Containing Benzyl Ether Mesogens by : C. S. Hsu
Download or read book Synthesis and Characterization of Liquid Crystalline Polysiloxanes Containing Benzyl Ether Mesogens written by C. S. Hsu and published by . This book was released on 1986 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Side chain liquid crystalline polysiloxanes were synthesized by the hydrosilation of poly(methylhydrosiloxane) with p-(1-undecenyl-11-oxy) benzyl ethers of: 4-cyanophenol (IM), 4-methoxyphenol (IIM), 4-cyano-4'-hydroxybiphenyl (IIIM), 4-methoxy-4'-hydroxybiphenyl (IVM) and 2-cyano-6-hydroxynaphthalene (VM). The phase behavior of both monomeric and polymeric liquid crystals was characterized by differential scanning calorimetry and optical polarization microscopy. IM is a monotropic liquid crystal, IIM is crystalline, IIIM and IVM are enantiotropic liquid crystals, while VM presents two virtual liquid crystalline transitions and crystalline polymorphism. All the synthesized polysiloxanes present enantiotropic smectic mesomorphism.
Book Synopsis Novel Side-Chain Liquid Cyrstalline Polymers by : Virgil Percec
Download or read book Novel Side-Chain Liquid Cyrstalline Polymers written by Virgil Percec and published by . This book was released on 1989 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report includes student papers on these topics: Syn thesis and Characterization of Liquid Crystalline Poly(N-acylethyleneimine)s, Liquid Crystalline Polymers Containing Heterocycloalkane Mesogens, Liquid Crystalline Polymers Containing Heterocycoalkane Mesogens, Synthesis and Characterization of Liquid Crystalline Polysiloxanes Containing Benzyl Ether Mesogens, Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis. Functional Polymers and Sequential Copolymers by Phase Transfer Catalysis. (jes).
Book Synopsis Synthesis and Characterization of Liquid Crystalline Poly((N-acylethyleneimine)s by : Jose M. Rodriguez-Parada
Download or read book Synthesis and Characterization of Liquid Crystalline Poly((N-acylethyleneimine)s written by Jose M. Rodriguez-Parada and published by . This book was released on 1986 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis and characterization of poly(p-vinylbenzyl ether)s containing 4-oxybiphenyl or 4-oxy-4' methoxybiphenyl mesogens or a 4-oxy-4'-methoxybiphenyl mesogen which is connected to the benzyl ether group through one, two or three oligo(oxyethylene) units, are presented. The first two polymers exhibit a nematic mesophase, while the last three, a highly ordered smectic mesophase.
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1987-10 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquid Crystalline Polymers Containing Heterocycloalkane Mesogens. 4. Biphasic Side-Chain Liquid Crystalline Polysiloxanes Containing Trans 5-(n-Undecanyl)-2-(4-Methoxyphenyl)-1,3-Dioxane and Trans 2-(n-Decanyl)-5-(4-Methoxyphenyl)-1,3-Dioxane Mesogens by : Chain S. Hsu
Download or read book Liquid Crystalline Polymers Containing Heterocycloalkane Mesogens. 4. Biphasic Side-Chain Liquid Crystalline Polysiloxanes Containing Trans 5-(n-Undecanyl)-2-(4-Methoxyphenyl)-1,3-Dioxane and Trans 2-(n-Decanyl)-5-(4-Methoxyphenyl)-1,3-Dioxane Mesogens written by Chain S. Hsu and published by . This book was released on 1986 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis and characterization of side-chain liquid crystalline polysiloxanes and copolysiloxanes containing trans 5-(n-undecanyl)-2-(4-methoxyphenyl)-1,3-dioxane and respectively trans 2-(n-decanyl)-5-(4-methoxyphenyl)-1-3-dioxane side groups is presented. In most cases the resulting polymers exhibit two glass transition temperatures, i.e., one due to the independent motion of the main chain, and the other due to the independent but cooperative motion of the side chains.
Book Synopsis Synthesis and Characterization of Benzylcyclopentadienylmetal Complexes and Ferrocene-containing Liquid Crystalline Polymers by : Poonam Singh
Download or read book Synthesis and Characterization of Benzylcyclopentadienylmetal Complexes and Ferrocene-containing Liquid Crystalline Polymers written by Poonam Singh and published by . This book was released on 1989 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Side-chain Liquid Crystalline Polymers Containing Mesogenic Units which Exhibit Constitutional Or Conformational Isomerism by : Chain-Shu Hsu
Download or read book Synthesis and Characterization of Side-chain Liquid Crystalline Polymers Containing Mesogenic Units which Exhibit Constitutional Or Conformational Isomerism written by Chain-Shu Hsu and published by . This book was released on 1987 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Biphasic Liquid Crystalline Polysiloxanes Containing 4-Undecanyloxy-4'-Cyanobiphenyl Side-Groups by : Chain S. Hsu
Download or read book Synthesis and Characterization of Biphasic Liquid Crystalline Polysiloxanes Containing 4-Undecanyloxy-4'-Cyanobiphenyl Side-Groups written by Chain S. Hsu and published by . This book was released on 1986 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis and characteristization of liquid crystalline polysiloxanes and copolysiloxanes containing 4-undecdanyuloxy-4' cyanobiphenyl side groups is presented. The polysiloxane presents a single glass transition temperature followed by an SC and an SA mesophase. Copolysiloxanes presenting around 50% weight fraction of side groups exhibit two glass transition temperatures i.e., one due to the independent motion of the main chain and the other due to the cooperative but independent motion of the side groups, and in addition to the SC and SA phases exhibited by the homopolymer, present also side-chain crystallization.
Book Synopsis Synthesis and Characterization of the Liquid Crystalline Side Chain Polymer 4'-Cyano-4-Pentyloxystilbene Polysiloxane by : Girija Subramaniam
Download or read book Synthesis and Characterization of the Liquid Crystalline Side Chain Polymer 4'-Cyano-4-Pentyloxystilbene Polysiloxane written by Girija Subramaniam and published by . This book was released on 1988 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The liquid crystalline side chain polymer 4'-cyano-4-pentyloxystilbene polysiloxane has been synthesized via direct condensation polymerization of the dichlorosilane monomer. Likewise, the synthesis of the starting silane, 4'-cyano-4-(5-dichloromethylsilyl)pentyloxystilbene which was used to terminate the reaction is reported. The mesogenic properties of the polymer, the side chain liquid crystal precursor and the respective dichlorosilane monomer are discussed. Keywords: Silanes, Chlorine compounds. (MJM).
Book Synopsis The Synthesis and Characterization of Polystyrene Liquid Crystalline Siloxane Block Copolymers by : Aaron J. Moment
Download or read book The Synthesis and Characterization of Polystyrene Liquid Crystalline Siloxane Block Copolymers written by Aaron J. Moment and published by . This book was released on 2000 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Polystyrene-Polysiloxane Side-Chain Liquid Crystalline Diblock Copolymers by : Aaron J. Moment
Download or read book Synthesis and Characterization of Polystyrene-Polysiloxane Side-Chain Liquid Crystalline Diblock Copolymers written by Aaron J. Moment and published by . This book was released on 1998 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Polymethacrylates, Polyacrylates, and Poly(methylsiloxane)s Containing 4-(S( - )-2-Methyl-1-Butoxy)-4'-(omega-Alkan-1-Yloxy)-alpha-Methylstilbene Side Groups by : V. Percec
Download or read book Synthesis and Characterization of Polymethacrylates, Polyacrylates, and Poly(methylsiloxane)s Containing 4-(S( - )-2-Methyl-1-Butoxy)-4'-(omega-Alkan-1-Yloxy)-alpha-Methylstilbene Side Groups written by V. Percec and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Side chain liquid crystalline polymers exhibiting chiral smectic C mesophases are of interest for both theoretical and technological reasons which were reviewed recently. So far there are only few examples of side chain liquid crystalline polymers exhibiting mesophases. Previous experiments from out laboratory on the synthesis and characterization of side chain liquid crystalline polymers containing chiral centers in the mesogenic groups 13-14 led to polymers exhibiting SA mesophases.
Book Synopsis Molecular Engineering of Liquid Crystalline Polymers by Living Polymerization. 20. Synthesis and Characterization of Binary Copolymers of 11- (4-Cyano-4'-biphenyl) Oxy)undecanyl Vinyl Ether with N-Butyl Vinyl Ether and of 2-(4-Cyano-4'biphenyl)oxy)ethyl Vinyl Ether with N-Butyl Vinyl Ether by :
Download or read book Molecular Engineering of Liquid Crystalline Polymers by Living Polymerization. 20. Synthesis and Characterization of Binary Copolymers of 11- (4-Cyano-4'-biphenyl) Oxy)undecanyl Vinyl Ether with N-Butyl Vinyl Ether and of 2-(4-Cyano-4'biphenyl)oxy)ethyl Vinyl Ether with N-Butyl Vinyl Ether written by and published by . This book was released on 1992 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copolymerization represents the simplest synthetic technique which can be used to tailor make phase transitions of both main chain and side chain liquid crystalline polymers. Indeed, copolymerization was frequently employed to manipulate the phase transitions of side chain liquid crystalline polymers. However, most of the results reported in the literature can be considered only in a qualitative way, since there are only very few cases in which information about both copolymer composition and molecular weight are available. A general classification of side chain liquid crystalline copolymers was recently discussed in a review article. There are two main classes of side chain liquid crystalline copolymers. The first one refers to copolymers containing pairs of structural units with and without mesogenic units. The second class refers to copolymers based on pairs of structural units containing mesogenic units in each structural unit.
Book Synopsis Liquid Crystalline Main-chain Aromatic Poly(ether)s and Side-chain Poly(vinyl Ether)s by : Håkan Jonsson
Download or read book Liquid Crystalline Main-chain Aromatic Poly(ether)s and Side-chain Poly(vinyl Ether)s written by Håkan Jonsson and published by . This book was released on 1991 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Faculties, Publications, and Doctoral Theses in Chemistry and Chemical Engineering at United States Universities by : American Chemical Society. Committee on Professional Training
Download or read book Faculties, Publications, and Doctoral Theses in Chemistry and Chemical Engineering at United States Universities written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1991 with total page 1646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Characterization of Some Liquid Crystalline Polyesters Based Upon the Oxybenzoate-terephthalate Mesogenic Unit by : C. K. Ober
Download or read book The Synthesis and Characterization of Some Liquid Crystalline Polyesters Based Upon the Oxybenzoate-terephthalate Mesogenic Unit written by C. K. Ober and published by . This book was released on 1982 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
