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Book Liquid Crystalline Side Chain Polysiloxanes with 4 amino 4   Stilbenecarboxylic Ester Mesogens

Download or read book Liquid Crystalline Side Chain Polysiloxanes with 4 amino 4 Stilbenecarboxylic Ester Mesogens written by Marietta O. Bautista and published by . This book was released on 1992 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Side Chain Polyacrylates with 4 Dimethylamino 4  Stilbenecarboxylic Ester Mesogens

Download or read book Side Chain Polyacrylates with 4 Dimethylamino 4 Stilbenecarboxylic Ester Mesogens written by Mingyang Zhao and published by . This book was released on 1989 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Omega-Acryloxyalkyl 4-dimethylamino-trans-stilbene-4'-carboxylates with (CH2)n spacer chains having n=2,4,6,8,and 10 have been synthesized and polymerized to give side chain liquid crystal polymers. DSC and polarizing microscopy show that the polymers have glass and isotropization transition temperatures that decrease with increasing length of the spacer chain to Tg=83C and Ti=125C for the (CH2)10 polymer. Low isotropization enthalpies of

Book Liquid Crystal Polymers

Download or read book Liquid Crystal Polymers written by D. Coates and published by iSmithers Rapra Publishing. This book was released on 2000 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid crystal polymers (LCPs) have a wide range of uses, from strong engineering plastics to delicate gels for use in liquid crystal (LC) displays. For this reason, it is essential reading for materials scientists, engineers or technologists in industry, as well as research laboratories or academia. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dissertation Abstracts International

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1993 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Organic Thin Films for Waveguiding Nonlinear Optics

Download or read book Organic Thin Films for Waveguiding Nonlinear Optics written by F. Kajzar and published by CRC Press. This book was released on 1996-10-15 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1996. Routledge is an imprint of Taylor & Francis, an informa company.

Book Synthesis and Characterization of Liquid Crystalline Polysiloxanes Containing Benzyl Ether Mesogens

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 Government Reports Announcements   Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994-04 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book ACS Directory of Graduate Research 1993

Download or read book ACS Directory of Graduate Research 1993 written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1993 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of Biphasic Liquid Crystalline Polysiloxanes Containing 4 Undecanyloxy 4  Cyanobiphenyl Side Groups

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 American Doctoral Dissertations

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1992 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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

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 Synthesis of Side Chain Liquid Crystal Polymers by Living Ring Opening Metathesis Polymerization  4  Synthesis of Amorphous and Side Chain Liquid Crystal AB Block Copolymers

Download or read book Synthesis of Side Chain Liquid Crystal Polymers by Living Ring Opening Metathesis Polymerization 4 Synthesis of Amorphous and Side Chain Liquid Crystal AB Block Copolymers written by and published by . This book was released on 1992 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diblock copolymers with well defined block length yield ordered phase separation. Morphology of the microphase separation is controllable by varying the weight ratio of the two blocks and the length of each block. If one of the blocks is a side chain liquid crystalline polymer (SCLCP), microphase separated systems with liquid crystalline microphases may be realized. Such systems are of fundamental as well as practical interest. The effect of size and type of the liquid crystalline microphase transition is one of the fundamental questions. This effect is recently investigated by the polymer system in which low molecular weight liquid crystals are dispersed. Different from the low molecular weight liquid crystals dispersed systems, the block copolymer can give several types of microdomains (lamellae, cylinders, or spheres).