Relevant bibliographies by topics / Optically active polymer

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Optically active polymer'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Optically active polymer"

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AOKI, Toshiki, and Eizo OIKAWA. "Optical Resolution by Optically Active Polymer Membrane." Kobunshi 44, no. 9 (1995): 621. http://dx.doi.org/10.1295/kobunshi.44.621.

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OISHI, Tsutomu, and Kenjiro ONIMURA. "Chiral Chromatography with Optically Active Polymer." Kobunshi 54, no. 8 (2005): 558–61. http://dx.doi.org/10.1295/kobunshi.54.558.

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in het Panhuis, Marc, Raquel Sainz, Peter C. Innis, Leon A. P. Kane-Maguire, Ana M. Benito, M. Teresa Martínez, Simon E. Moulton, Gordon G. Wallace, and Wolfgang K. Maser. "Optically Active Polymer Carbon Nanotube Composite." Journal of Physical Chemistry B 109, no. 48 (December 2005): 22725–29. http://dx.doi.org/10.1021/jp053025z.

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Yuan, Chao, Ping Liu, Long Hua Chen, and Yuan Zhang. "Radical Polymerization of a Novel Methacrylamide Derivative." Advanced Materials Research 1095 (March 2015): 359–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.359.

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The radical polymerization of a novel methacrylamide derivative, N-[o-(4-ethyl-4, 5-dihydro-1, 3-oxazol-2-yl) phenyl] methacrylamide ((S)-EtOPMAM), was carried out to obtained optically active polymers. The polymer yield and the chiroptical behavior of the resultant polymers have been examined in detail by using IR and 1H NMR spectroscopies in comparison with our previous observation. The polymers showed relatively high molecular weights (Mn=8000-16000) and largest specific rotations ([α]25D =+120.6o). Particularly, the largest specific optical rotation of the polymer is almost the six times of the monomer.
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Vilela, Sérgio M. F., Artem A. Babaryk, Rim Jaballi, Fabrice Salles, Marta E. G. Mosquera, Zakaria Elaoud, Stijn Van Cleuvenbergen, Thierry Verbiest, and Patricia Horcajada. "A Nonlinear Optically Active Bismuth-Camphorate Coordination Polymer." European Journal of Inorganic Chemistry 2018, no. 20-21 (May 18, 2018): 2437–43. http://dx.doi.org/10.1002/ejic.201800197.

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Muto, Shinzo, Tomoyasu Sakagami, Yoshihiko Sakane, Akira Namazue, Eisuke Nihei, and Yasuhiro Koike. "TE-TM Mode Converter Using Optically Active Polymer." Optical Review 3, no. 2 (March 1996): 120–23. http://dx.doi.org/10.1007/s10043-996-0120-8.

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Buckley, L. J., and G. C. Neumeister. "Fiber optic strain measurements using an optically-active polymer." Smart Materials and Structures 1, no. 1 (March 1, 1992): 1–4. http://dx.doi.org/10.1088/0964-1726/1/1/001.

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Morisaki, Yasuhiro, Kentaro Suzuki, Hiroaki Imoto, and Yoshiki Chujo. "P-Stereogenic Optically Active Polymer and the Complexation Behavior." Macromolecular Chemistry and Physics 212, no. 24 (October 31, 2011): 2603–11. http://dx.doi.org/10.1002/macp.201100432.

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Ge, Chang Hong, Feng Xian Qiu, Xiao Xian Gu, and Dong Ya Yang. "Synthesis, Photoisomerization and Thermo-Optic Property of Azo Optically Active Polymer." Materials Science Forum 663-665 (November 2010): 41–44. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.41.

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A novel azobenzene optically polymer (P-DA) was synthesized based on the azo chromophore molecule, chiral reagent L(-)-tartaric acid, acryloyl chloride and methacrylate. The P-DA was characterized by FT-IR, UV-Vis spectroscopy, 1H NMR, DSC and TGA. The P-DA had high thermal stability up to its glass-transition temperature (Tg) of 110 oC and 5 % heat weight loss temperature of 199 oC. The UV-induced trans/cis photoisomerization and reflex-isomerization behaviors were investigated. The results indicated that the P-DA solution could undergo photochromism after irradiated by 365 nm UV light. The optical parameters: refractive index (n), the dielectric constant (ε) and thermal volume expansion coefficient (β) of P-DA were obtained. The thermo-optic coefficients are one order of magnitude larger than those of the inorganic materials, such as SiO2 (1.1×10−5 oC -1 and LiNbO3 (4×10−5 oC -1) and was larger than the organic material such as polystyrene (-1.23×10-4 oC -1) and PMMA (-1.20×10-4 oC -1). The conclusion had a little significance to develop optical communication.
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Jintoku, Hirokuni, Momoko Dateki, Makoto Takafuji, and Hirotaka Ihara. "Supramolecular gel-functionalized polymer films with tunable optical activity." Journal of Materials Chemistry C 3, no. 7 (2015): 1480–83. http://dx.doi.org/10.1039/c4tc02948h.

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Dissertations / Theses on the topic "Optically active polymer"

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Singfield, Kathy L. (Kathy Lee). "Crystallization and morphology of optically active polyethers." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40257.

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The isothermal crystallization kinetics, spherulite morphology, and thermal behavior of the melt-crystallized optically active R and S polyenantiomers, their blends, and the stereoblock form of poly(epichlorohydrin) (PECH) and poly(propylene oxide) (PPrO) have been investigated using polarized light microscopy (PLOM), atomic force microscopy (AFM), and differential scanning calorimetry (DSC). The novel optically pure polyenantiomers of PECH were synthesized from the optically active monomers using a triethylaluminum$ cdot$water (1:0.6) catalyst, which was also used in the polymerization of the racemic monomer to an isotactic crystalline stereoblock fraction. The optically pure polyenantiomers and the stereoblock form of PPrO were obtained by the quantitative dechlorination reaction of the corresponding PECH polymers, using LiAlH$ sb4$, with retention of configuration of the main chain chiral centers.
The spherulite radial growth rates of the melt-crystallized PECH equimolar polyenantiomer blend are depressed relative to those of either optically pure components over the range of crystallization temperatures from the glass transition temperature ($T sb{ rm g} = -26 sp circ$C) to the equilibrium melting temperature ($T sb{ rm m} sp circ = 138 sp circ$C), which were determined to be the same for all of the PECH polymers. A further marked reduction in growth rates is recorded for the stereoblock polymer. Conversion of the PECH polyenantiomers to PPrO results in an overall order of magnitude increase in the spherulite radial growth rates. The growth rates of the PPrO stereoblock are only slightly depressed relative to those of either optically pure polyenantiomer over the range of crystallization temperatures from $T sb{ rm g}({-}65 sp circ$C) to $T sb{ rm m} sp circ(82 sp circ$C), which were determined to be the same for all of the PPrO polymers. An analysis of the linear spherulite radial growth rates of the PECH polymers in terms of the Hoffman-Lauritzen treatment gives evidence of a rougher lamellar fold surface in the stereoblock polymer than in the polyenantiomers, but suggests similar surface free energies among the polyenantiomers and stereoblock form of PPrO.
The multiple melting behavior exhibited by the different forms of PECH is greatly dependent on DSC heating rate and isothermal crystallization time, for samples crystallized at low temperatures and high temperatures, respectively. The behavior is demonstrated to be due to reorganization during the DSC heating scan in the former case, and linked to the process of secondary crystallization in the latter.
The optically pure polyenantiomers, their equimolar blend, and the stereoblock form of PPrO exhibit regularly banded spherulites, observed using PLOM. In contrast, only the optically active polyenantiomers of PECH form banded spherulites, whereas the equimolar polyenantiomer blend and the stereoblock display nonbanded, coarser spherulites. The birefringent extinction banding pattern of the PECH optically pure polyenantiomer spherulites corresponds directly to the surface topography mapped by AFM: Regularly alternating concentric ridges and valleys indicate the edges and the fold surfaces, respectively, of the radiating helicoidal lamellae. The direction or "sense" of an apparent surface spiral pattern of a banded spherulite is directly dependent on the chiral sense of the constituent polyenantiomer. It is suggested that the effects of the backbone chirality are being transmitted to the level of the gross spherulite morphology.
On the basis of the observed differences in crystallization kinetics and spherulite morphology among the well characterized PECH polymers, a mechanism of stereospecific segregation at the growth front is proposed.
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Goutte, Pascale. "Synthese et proprietes de polyoxirannes et polythiirannes porteurs de fonctions aldehyde potentielles." Paris 6, 1988. http://www.theses.fr/1988PA066266.

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Synthese et polymerisation de diethoxy-1,1 epoxy-2,3 et diethoxy-1,1 epithio-2,3 propane racemiques en vue de preparer des polyethers et polythioethers ayant des fonctions aldehydes dans la chocine laterale
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Laguerre, Albert. "Oligomerisation et fonctionnalisation en serie methacrylique : greffage d'acides alpha amines." Le Mans, 1987. http://www.theses.fr/1987LEMA1017.

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Oligomerisation anionique du methacrylate de methyle. Modification des fonctions ester en fonctions plus reactions (alcool, chloroformiate, acide). Greffage d'aminoacides dont une seule fonction est libre pour eviter leur oligocondensation. Caracterisations des produits obtenus par rmn**(13)c, **(1)h et ir. Utilisation de ces produits pour la synthese de polyamides et de polyurethannes optiquement actifs
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Mauriello, Francesco <1980&gt. "Optically active photoresponsive multifunctional polymeric materials." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/711/.

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In the last year [1], Angiolini and co-workers have synthesized and investigated methacrylic polymers bearing in the side chain the chiral cyclic (S)-3-hydroxypyrrolidine moiety interposed between the main chain and the trans-azoaromatic chromophore, substituted or not in the 4’ position by an electron-withdrawing group. In these materials, the presence of a rigid chiral moiety of one prevailing absolute configuration favours the establishment of a chiral conformation of one prevailing helical handedness, at least within chain segments of the macromolecules, which can be observed by circular dichroism (CD). The simultaneous presence of the azoaromatic and chiral functionalities allows the polymers to display both the properties typical of dissymmetric systems (optical activity, exciton splitting of dichroic absorptions), as well as the features typical of photochromic materials (photorefractivity, photoresponsiveness, NLO properties). The first part of this research was to synthesize analogue homopolymers and copolymers based on bisazoaromatic moiety and compare their properties to those of the above mentioned analogue derivatives bearing only one azoaromatic chromophore in the side chain. We focused also the attention on the effects induced on the thermal and chiroptical behaviours by the insertion of particulars achiral comonomers characterized by different side-chain mobility and grown hindrance (MMA, tert-BMA and TrMA). On the other hand carbazole containing polymers [2] have attracted much attention because of their unique features. The use of these materials in advanced micro- and nanotechnologies spreads in many different applications such as photoconductive and photorefractive polymers, electroluminescent devices, programmable optical interconnections, data storage, chemical photoreceptors, NLO, surface relief gratings, blue emitting materials and holographic memory. The second part of the work was focused on the synthesis and the characterization polymeric derivatives bearing in the side chain carbazole or phenylcarbazole moieties linked to the (S)- 2-hydroxy succinimide or the (S)-3-hydroxy pyrrolidinyl ring as chiral groups covalently linked to the main chain through ester bonds. The last objective of this research was to design, synthesize, and characterize multifunctional methacrylic homopolymers and copolymers bearing three distinct functional groups (i.e. azoaromatic, carbazole and chiral group of one single configuration) directly linked in the side chain. This polymeric derivatives could be of potential interest for several advanced application fields, such as optical storage, waveguides, chiroptical switches, chemical photoreceptors, NLO, surface relief gratings, photoconductive materials, etc.
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Koch, Alexander. "Nonlinearly optically active liquid crystalline main-chain polymers." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621785.

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McCann, Jennifer L. "A vibrational circular dichroism study of optically active polymers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ34685.pdf.

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Jana, Satyasankar. "Novel synthesis of carbon-carbon mainchain optically active polymers." Thesis, University of Strathclyde, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415300.

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Kelly, Elizabeth Jane. "Investigations of optically active polymeric chiral stationary phases." Thesis, University of Warwick, 1997. http://wrap.warwick.ac.uk/78770/.

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This thesis describes the application of optically active helical polymers to chiral stationary phases for high performance liquid chromatography. The use of porous graphitic carbon as a support for these phases is examined and its implication for the nature of the separation. In the first case 3,5-dimethylphenyl carbamate (CDMPC) was studied. This work continued the study by Grieb and Matlin. The use of porous graphitic carbon as a support for this polymer was examined. PGC is produced by Hypersil under the name Hypercarb. It is a porous carbon phase with virtually no surface functionalities. It was confirmed that a 25% w/w loading ofCDMPC produced using a batch coating method produced the optimum phase. The nature of the cellulose used to synthesise the CDMPC was also studied by gel permeation chromatography. It was found that Avicel cellulose (Merck) gave the best results. CDMPC has certain characteristics which make it an effective phase, these are; a) a-helical secondary structure and b) optical activity within the monomer unit. We decided to examine other polymers which possess these characteristics, in particular poly-L-Ieucine. It is believed that this polymer has an a-helical secondary structure and in its synthesis L-leucine is used as a single pure isomer. This polymer has been shown to be effective as an asymmetric organic catalyst. Poly-L-Ieucine was synthesised using condensation polymerisation with three methods of initiation using both L-Ieucine and N-carboxy anhydride L-Ieucine as monomers. N-carboxy anhydride L-Ieucine was initiated by ethylenediamine in solution and water via a humidity cabinet. L-Ieucine was polymerised using triphenyl phosphite, lithium chloride and N-methyl pyrrolidine. Poly-L-Ieucine containing a maximum of fifteen residues was synthesised using solid phase peptide synthesis techniques. These polymers were examined using MALDI-TOF and ESI mass spectrometry. The polymers synthesised from N-carboxy anhydride L-Ieucine were examined using viscometry. Comparing these results it was considered that the molecular weight of the water-initiated polymer was greater. This polymer was further modified by continuous extraction to remove lower molecular weight fragments. All of these polymers were coated onto the surface of PGC by evaporation. It was shown that a 20% w/w loading level was optimum for this type of phase. The optimum phase was found to be made from the water initiated polymer after continuous extraction. This phase was shown to be capable of the resolution ofa variety of racemic epoxides.
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Terada, Kayo. "Synthesis and Properties of Amino Acid-derived Optically Active Polymers." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/77990.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第14642号
工博第3110号
新制||工||1463(附属図書館)
26994
UT51-2009-D354
京都大学大学院工学研究科高分子化学専攻
(主査)教授 中條 善樹, 教授 木村 俊作, 准教授 三田 文雄
学位規則第4条第1項該当
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Ouchi, Yuko. "Synthesis of optically active polymers consisting of chiral phosphorus atoms." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136251.

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Books on the topic "Optically active polymer"

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Dutta, Pradip K., and Vinod Kumar. Optically Active Polymers. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2606-5.

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Kelly, Elizabeth Jane. Investigations of optically active polymeric chiral stationary phases. [s.l.]: typescript, 1997.

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Europhysics Conference on Macromolecular Physics (21st 1989 Łodź, Poland). Electrical and optical active polymers: Structure, morphology, and properties. Edited by Kryszewski Marian, Ulański J, European Physical Society. Macromolecular Physics Section., Politechnika Łódzka Instytut Polimerów, Politechnika Łódzka. Polymer Physics Laboratory., and Centrum Badań Molekularnych i Makromolekularnych (Polska Akademia Nauk). Polymer Physics Dept. Geneva: European Physical Society, 1989.

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Bryant, Richard. Optically active polymers, organometallics, and biomolecular materials/devices: A technical/economic analysis. Norwalk, CT: Business Communications Co., 1991.

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Brédas, J. L. Conjugated Polymers: The Novel Science and Technology of Highly Conducting and Nonlinear Optically Active Materials. Dordrecht: Springer Netherlands, 1991.

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Optically Active Polymers. Springer, 2011.

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Shibaev, Valery P. Polymers as Electrooptical and Photooptical Active Media. Springer, 2011.

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P, Shibaev V., ed. Polymers as electrooptical and photooptical active media. Berlin: Springer, 1996.

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1954-, Brédas J. L., and Silbey Robert J, eds. Conjugated polymers: The novel science and technology of highly conducting and nonlinear optically active materials. Dordrecht: Kluwer Academic Publishers, 1991.

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(Editor), J. L. Brédas, and R. Silbey (Editor), eds. Conjugated Polymers: The Novel Science and Technology of Highly Conducting and Nonlinear Optically Active Materials. Springer, 1991.

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Book chapters on the topic "Optically active polymer"

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Nozaki, Kyoko. "Optically Active Polyketones." In Polymeric Chiral Catalyst Design and Chiral Polymer Synthesis, 407–22. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118063965.ch14.

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Sasabe, H., T. Wada, H. Ookawa, M. Hosoda, M. Sekiya, A. Yamada, and A. F. Garito. "Nonlinear Optically Active Polymers for Waveguide Application." In Progress in Pacific Polymer Science, 193–202. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84115-6_24.

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Lavallee, Claude, Daniel Grenier, Robert E. Prud’homme, Alain Leborgne, and Nicolas Spassky. "Synthesis and Properties of Racemic and Optically Active Substituted Poly(β-Propiolactones)." In Advances in Polymer Synthesis, 441–60. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2121-7_22.

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Hu, Qiao-Sheng, and Lin Pu. "Optically Active Polymer and Dendrimer Synthesis and their Use in Asymmetric Catalysis." In Polymeric Chiral Catalyst Design and Chiral Polymer Synthesis, 323–63. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118063965.ch11.

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Zhang, J. Z., M. A. Kreger, E. H. Goka, L. Pu, Q. S. Hu, D. Vitharana, and L. J. Rothberg. "Femtosecond Studies of Exciton Dynamics in a Novel Optically Active Conjugated Polymer." In Springer Series in Chemical Physics, 284–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80314-7_123.

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Gooch, Jan W. "Optically-Active Polymers." In Encyclopedic Dictionary of Polymers, 504. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_8220.

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Fujiki, Michiya, and Julian R. Koe. "Optically Active Silicon-Containing Polymers." In Silicon-Containing Polymers, 643–65. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-3939-7_24.

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Okamoto, Yoshio, Eiji Yashima, and Chiyo Yamamoto. "Optically Active Polymers with Chiral Recognition Ability." In Materials-Chirality, 157–208. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2004. http://dx.doi.org/10.1002/0471471895.ch3.

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Wulff, Günter. "Optically Active Vinyl Polymers with Backbone Chirality." In Recent Advances in Mechanistic and Synthetic Aspects of Polymerization, 399–408. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3989-9_32.

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Buckley, A., and J. B. Stamatoff. "Non Linear Optical Polymers for Active Optical Devices." In Nonlinear Optical Effects in Organic Polymers, 327–36. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2295-2_25.

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Conference papers on the topic "Optically active polymer"

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Huyal, Ilkem Ozge, Tuncay Ozel, Donus Tuncel, and Hilmi Volkan Demir. "Optically active bi-polymer hetero-nanoparticles." In LEOS 2009 -22nd Annuall Meeting of the IEEE Lasers and Electro-Optics Society (LEO). IEEE, 2009. http://dx.doi.org/10.1109/leos.2009.5343275.

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Yang, E. H., Y. Hishinuma, J. Su, T. B. Xu, R. Morgan, and Z. Chang. "Active Membrane Using Electrostructure Graft Elastomer for Deployable and Lightweight Mirrors." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43541.

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An important requirement enabling future space missions is the availability of very large, deployed, re-configurable apertures for high-resolution imaging. Membrane-based architectures have the potential for very low aerial densities, which will enable large aperture space telescopes. Two major requirements for considering large apertures are: 1) a high degree of surface control coupled with a low-mass deployable capability and 2) an optical quality membrane mirror technology. Current state-of-the-art deployable aperture technologies have significant limitations in their ability to correct the surface figure following deployment. In this paper, a controlled deformation of silicon membrane mirrors using electroactive polymer has been demonstrated to overcome these limitations. We have designed, modeled, and fabricated Electrostrictive Graft Elastomer (G-elastomer)-based bi-layer membranes. The bi-layer mirror membranes maintain a good working condition after thermal cyclic tests, performed at temperatures between −50 °C and 150 °C. G-elastomer provides means to drive and control the deflection and curvature of reflective membranes. Several G-elastomer-based bi-layer structures have been optically characterized. This concept can be scaled to a deployable ultra-large mirror with a self-reconfiguration capability.
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Kulkarni, Sudhir, Kunal Mitra, and Swaminathan Ramesh. "Optical Performance of a Hybrid Nano-Polymer Solar Cell." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41509.

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Solar energy harvesting is one of the most fundamental solutions to the energy crisis; photovoltaics are the best way to achieve it. Organic based photovoltaics have potential for application as a renewable source of energy. It is cost-effective, light weight, simple and economical to fabricate. Introduction of nanomaterials into polymers is very promising for enhancing photovoltaic conversion efficiency and can potentially improve photochemical and environmental stability. The objective of this paper is to investigate the influence of the nanocomposite film morphology on the optical performance of the hybrid nano-polymer solar cell. The efficiency of such hybrid solar cell depends mainly on the exciton dissociation efficiency and charge mobility. The exciton dissociation efficiency can be improved by increasing the interfacial area between the nanoparticles and polymer. Charge mobility can be improved by proper distribution of nanoparticles in polymer to form better percolation path of each material. Both these parameters are strongly dependant on better distribution of nanoparticles in the polymer. The approach used here is the application of star dispersant, specifically designed for conducting polymers. This dispersant will modify the arms of the conducting polymer to have a high affinity towards nanoparticles and provide better distribution. In this paper the influence on the morphology of the solar cell by the use of star dispersant and corresponding improvement in optical properties and performance is analyzed. Subsequent papers will describe the photovoltaic enhancements of such a solar cell. The solar cell structure chosen here is ITO / PEDOT:PSS / P3HT:TiO2 / Al. A number of specimens are prepared with and without introduction of the star-dispersant. For structural characterization, Scanning Electron Microscopy (SEM) is used. Absorption spectrum analysis and Photoluminescence (PL) analysis are performed to characterize the optical properties of the active layer. Structural characterization revealed that with the application of the dispersant, better mixing of the nanoparticles and the polymer can be achieved. This will in turn increase the interface area and improve exciton dissociation. Better PL quenching is observed in the dispersant modified active layer confirming an improved degree of exciton dissociation.
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Domakonda, S., L. Gouti, S. Earles, C. Baum, S. Ramesh, and K. Mitra. "Characterization of Hybrid-Nano Polymer Solar Cell." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12895.

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The efficiency of hybrid solar cell depends mainly on the exciton dissociation efficiency and charge mobility. The exciton dissociation efficiency can be improved by increasing the interfacial area between the nanoparticles and polymer. Charge mobility can be improved by proper distribution of nanoparticles in polymer to form better permitting path of each material. Both these parameters are strongly dependant on better distribution of nanoparticles in the polymer. The approach used in this research is the application of star dispersant to the photo active layer, specifically designed for conducting polymers. This dispersant will modify the arms of conducting polymer to have a high compatibility with nanoparticles and provide better distribution. The patterning of these polymers is achieved by wet etching process. Finally, Indium is used as a contact between P3HT and ITO to measure voltage and current characteristics. A number of specimens are prepared with and without the introduction of star dispersant. Absorption spectrum analysis and Photoluminescence (PL) measurements are performed to characterize the optical properties of active layer. Parametric study involving influence of the nano-composite film morphology with and without star dispersant for Photoluminescence measurement and I-V characteristics of hybrid nano-polymer solar cells have been studied. Structural characterization revealed that with the application of the dispersant, better mixing of the nanoparticles and the polymer can be achieved. This will in turn increase the interface area and improve exciton dissociation.
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Jung, Erik, Dirk Wojakowski, Alexander Neumann, Andreas Ostmann, Rolf Aschenbrenner, and Herbert Reichl. "Chip in Polymer: 3D Integration of Active Circuitry in Polymeric Substrate." In ASME 2003 International Electronic Packaging Technical Conference and Exhibition. ASMEDC, 2003. http://dx.doi.org/10.1115/ipack2003-35025.

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The demand to miniaturize products especially for mobile applications and autonomous systems is continuing to drive the evolution of electronic products and manufacturing methods. One key to miniaturization developed in the past was the use of unpackaged, bare dice. Saving the volume and weight of the package, significant reduction in footprint was achieved. A next step conceived to further the miniaturization is the integration of functions on miniaturized subsystems, i.e. System-in-Package (SiP), in contrast to a full silicon integration (System-on-Chip, SoC). Here, use of recent manufacturing methods allows to merge the SiP approach with a volumetric integration. Up to now, most of the systems make use of single- or double-sided populated system carriers. Embedding of passive components was a first step forward. A new challenge is to incorporate not only passive components, but as well active circuitry (IC’s) and the necessary thermal management. Ultra thin chips (i.e. silicon dies thinned down to &lt;50μm total thickness) lend themselves to reach these goals. Chips with that thickness can be embedded in the dielectric layers of modern laminate PCB’s. Micro via technology allows to contact the embedded chip to the outer faces of the system circuitry. As a ultimate goal for microsystem integration, the embedding of optical and fluidical system components can be envisioned. This paper presents the first attempts to embed thin silicon dies in to polymeric system carriers. The aspects of embedding and making the electrical contact as well as the thermal management are highlighted. To reach the goal of a vertically stackable “box-of-bricks” type of ultra thin (UT) package, thin silicon chips are embedded and interconnected on a peripheral UT-CSP.
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Paiva, Laura Simonassi Raso de, Leonardo Evaristo de Sousa, and Pedro Henrique de Oliveira Neto. "Energy transport in conjugated polymers: electronic structure and kinetic Monte Carlo simulations." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol202076.

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Conjugated polymers are materials that have attracted much attention from the research community because of their charge and energy transport properties. In this sense, it is necessary to understand the mechanism behind exciton transfer in this particular class of systems. However, direct application of procedures done for different organic compounds is not straightforward for long polymeric chains, because such procedures would be computationally impracticable. In that matter, alternative treatments are required. In this work, we perform spectrum simulations for poly-thiophene (PTH) and poly(p-phenylene vinylene) (PPV) chains by analyzing the evolution of electronic properties with oligomer sizes and its effects on exciton diffusion. Furthermore, employing a kinetic Monte Carlo model, we also investigate the efficiency of intrachain exciton diffusion. Our results show a reliable description of the optical properties for long polymeric chains, and a comparison is made between the different approaches in describing the optical properties of such polymers. This study may be useful in the development of more sophisticated optoelectronic devices that use conjugated polymers as its active materials.
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Wysokiński, Karol, Marta Filipowicz, Tomasz Stańczyk, Stanisław Lipiński, Marek Napierała, Michał Murawski, and Tomasz Nasiłowski. "Active polymer materials for optical fiber CO2 sensors." In 25th International Conference on Optical Fiber Sensors, edited by Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura, and Libo Yuan. SPIE, 2017. http://dx.doi.org/10.1117/12.2265623.

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Tsujita, Yuichi. "Plastic optical fiber and polymer waveguide for active optical cable." In Ultra-High-Definition Imaging Systems IV, edited by Toyohiko Yatagai, Yasuhiro Koike, and Seizo Miyata. SPIE, 2021. http://dx.doi.org/10.1117/12.2585366.

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Numata, Hidetoshi, Masao Tokunari, and Jean Benoit Heroux. "60-micrometer Pitch Polymer Waveguide Array attached Active Optical Flex." In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/ofc.2017.w1a.5.

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Jungwirth, Matthew E. L., Christopher C. Wilcox, David V. Wick, Michael S. Baker, Clinton G. Hobart, Jared J. Milinazzo, Joseph Robichaud, et al. "Large-aperture active optical carbon fiber reinforced polymer mirror." In SPIE Defense, Security, and Sensing, edited by Thomas George, M. Saif Islam, and Achyut K. Dutta. SPIE, 2013. http://dx.doi.org/10.1117/12.2020722.

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