Academic literature on the topic 'Polymer backbone'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Polymer backbone.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Polymer backbone"

1

Saha, Debasish, Karthik R. Peddireddy, Jürgen Allgaier, et al. "Amphiphilic Comb Polymers as New Additives in Bicontinuous Microemulsions." Nanomaterials 10, no. 12 (2020): 2410. http://dx.doi.org/10.3390/nano10122410.

Full text
Abstract:
It has been shown that the thermodynamics of bicontinuous microemulsions can be tailored via the addition of various different amphiphilic polymers. In this manuscript, we now focus on comb-type polymers consisting of hydrophobic backbones and hydrophilic side chains. The distinct philicity of the backbone and side chains leads to a well-defined segregation into the oil and water domains respectively, as confirmed by contrast variation small-angle neutron scattering experiments. This polymer–microemulsion structure leads to well-described conformational entropies of the polymer fragments (back
APA, Harvard, Vancouver, ISO, and other styles
2

Kot, E., R. K. K. Saini, L. R. R. Norman, and A. Bismarck. "Novel Drag-Reducing Agents for Fracturing Treatments Based on Polyacrylamide Containing Weak Labile Links in the Polymer Backbone." SPE Journal 17, no. 03 (2012): 924–30. http://dx.doi.org/10.2118/141257-pa.

Full text
Abstract:
Summary Water-soluble polymers have found extensive use in the oil and gas industry. For instance, high-molecular-weight polymers are very efficient drag-/friction-reducing agents and viscosifiers. Unfortunately, the adsorption of the polymer on the reservoir formation reduces the effectiveness of the recovery of oil and gas from low-permeability formations, such as shale. The availability of water-soluble polymers containing weak links in the backbone of the polymer that can be degraded upon experiencing a certain trigger, such as temperature, pH, or reducing agent, would be very advantageous
APA, Harvard, Vancouver, ISO, and other styles
3

Dyson, Matthew J., Eirini Lariou, Jaime Martin, et al. "Managing Local Order in Conjugated Polymer Blends via Polarity Contrast." Chemistry of Materials 31, no. 17 (2019): 6540–47. https://doi.org/10.1021/acs.chemmater.8b05259.

Full text
Abstract:
<strong>Abstract:</strong> The optoelectronic landscape of conjugated polymers is intimately related to their molecular arrangement and packing, with minute changes in local order, such as chain conformation and torsional backbone order/disorder, frequently having a substantial effect on macroscopic properties. While many of these local features can be manipulated via chemical design, the synthesis of a series of compounds is often required to elucidate correlations between chemical structure and macromolecular ordering. Here, we show that blending semiconducting polymers with insulating commo
APA, Harvard, Vancouver, ISO, and other styles
4

Kanatieva, Anastasiia Yu, Dmitry A. Alentiev, Valeria E. Shiryaeva, Alexander A. Korolev, and Alexander A. Kurganov. "Impact of the Polymer Backbone Structure on the Separation Properties of New Stationary Phases Based on Tricyclononenes." Polymers 14, no. 23 (2022): 5120. http://dx.doi.org/10.3390/polym14235120.

Full text
Abstract:
The main purpose of this paper is to compare the chromatographic properties of capillary columns prepared with polymers with different backbone structures and to demonstrate the possibility of polymer differentiation via inverse gas chromatography. With the use of addition and metathesis types of polymerization of tricyclononenes, two new stationary phases were prepared. The metathesis polymer contained double bonds in the polymeric backbone while the backbone of the addition polymer was fully saturated and relatively mobile. A comparison of the separation and adsorption properties of new phas
APA, Harvard, Vancouver, ISO, and other styles
5

Park, Kyung Sun, Justin J. Kwok, Rishat Dilmurat, et al. "Tuning conformation, assembly, and charge transport properties of conjugated polymers by printing flow." Science Advances 5, no. 8 (2019): eaaw7757. http://dx.doi.org/10.1126/sciadv.aaw7757.

Full text
Abstract:
Intrachain charge transport is unique to conjugated polymers distinct from inorganic and small molecular semiconductors and is key to achieving high-performance organic electronics. Polymer backbone planarity and thin film morphology sensitively modulate intrachain charge transport. However, simple, generic nonsynthetic approaches for tuning backbone planarity and the ensuing multiscale assembly process do not exist. We first demonstrate that printing flow is capable of planarizing the originally twisted polymer backbone to substantially increase the conjugation length. This conformation chang
APA, Harvard, Vancouver, ISO, and other styles
6

Li, Zongze, Gregory M. Treich, Mattewos Tefferi, et al. "High energy density and high efficiency all-organic polymers with enhanced dipolar polarization." Journal of Materials Chemistry A 7, no. 25 (2019): 15026–30. http://dx.doi.org/10.1039/c9ta03601f.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Lv, Lei, Xiaofen Wang, Tao Dong, et al. "Significantly improving the efficiency of polymer solar cells through incorporating noncovalent conformational locks." Materials Chemistry Frontiers 1, no. 7 (2017): 1317–23. http://dx.doi.org/10.1039/c6qm00296j.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tanaka, Tomonari. "Recent Advances in Polymers Bearing Activated Esters for the Synthesis of Glycopolymers by Postpolymerization Modification." Polymers 16, no. 8 (2024): 1100. http://dx.doi.org/10.3390/polym16081100.

Full text
Abstract:
Glycopolymers are functional polymers with saccharide moieties on their side chains and are attractive candidates for biomaterials. Postpolymerization modification can be employed for the synthesis of glycopolymers. Activated esters are useful in various fields, including polymer chemistry and biochemistry, because of their high reactivity and ease of reaction. In particular, the formation of amide bonds caused by the reaction of activated esters with amino groups is of high synthetic chemical value owing to its high selectivity. It has been employed in the synthesis of various functional poly
APA, Harvard, Vancouver, ISO, and other styles
9

Cheng, Heung-Kiu, and Vivian Wing-Wah Yam. "Luminescent alkynylplatinum(II) terpyridine-containing conjugated polymers: synthesis, characterization and photophysical studies." Chemical Synthesis 3, no. 2 (2023): 13. http://dx.doi.org/10.20517/cs.2022.43.

Full text
Abstract:
A series of alkynylplatinum(II) terpyridine complexes and alkynylplatinum(II) terpyridine-containing conjugated polymers with different polymer backbones has been synthesized, and their spectroscopic properties and Förster resonance energy transfer (FRET) processes has been investigated. The platinum(II)-containing polymers exhibit dual emissive features with emission maxima at ca. 416-465 nm and ca. 671-673 nm, which are assigned to be originated from singlet intraligand (1IL) excited states from the polymer backbone and triplet metal-metal-to-ligand charge transfer (3MMLCT) excited states fr
APA, Harvard, Vancouver, ISO, and other styles
10

Hou, Qiong, Jie Luo, Sui Lian Luo, Hong Zhu, and Guang Shi. "White Electroluminescence from a Single Fluorene-Based Copolymer." Advanced Materials Research 160-162 (November 2010): 732–36. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.732.

Full text
Abstract:
White light emitting polymers were synthesized through incorporating of low-band gap red light emitting 4,7-di(4-hexyl-thien-2-yl)-2,1,3-benzothiadiazole (DHTBT) moieties into the backbone of a blue-light-emitting poly(9,9-dioctylfluorene) (PFO). Incomplete energy transfer from the blue electroluminescent PFO backbone to the red light emitting unit occurred by carefully controlling the relative content of the low-band gap unit DHTBT in the resulting polymers. Pure white light electroluminescence from a single polymer has been obtained in a device with a configuration of ITO/PVK/polymer/Ba/Al.T
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Polymer backbone"

1

Pollino, Joel Matthew. "The "Universal Polymer Backbone" concept." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-11112004-143714/unrestricted/pollino%5Fjoel%5Fm%5F200412%5Fphd.pdf.pdf.

Full text
Abstract:
Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2005.<br>Weck, Marcus, Committee Chair ; Jones, Christopher, Committee Member ; Collard, David, Committee Member ; Liotta, Charles, Committee Member ; Bunz, Uwe, Committee Member. Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles
2

Daglen, Bevin Colleen 1977. "Factors affecting the photodegradation rates of polymers that contain (cyclopentadienyl-(carbon monoxide)-molybdenum) in the backbone." Thesis, University of Oregon, 2008. http://hdl.handle.net/1794/8567.

Full text
Abstract:
xxii, 143 p. ; ill. (some col.) A print copy of this title is available through the UO Libraries. Search the library catalog for the location and call number.<br>There are compelling economic and environmental reasons for using degradable plastics in selected applications and considerable research is now devoted to devising new photodegradable polymers with improved performance. Controlling the degradation of these materials in a prescribed fashion is still a difficult problem because the parameters that influence degradation rates are not completely understood. In order to predict polymer li
APA, Harvard, Vancouver, ISO, and other styles
3

Farooq, Fauzia. "The stereoselective synthesis of side-chain liquid crystalline poly(ethyleneoxide)s possessing backbone chirality." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343153.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

ANDREOSSO, IVAN. "FUNCTIONALIZATION OF UNSATURATED POLYMERS BACKBONE FOR TYRE COMPOUNDING APPLICATION." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241275.

Full text
Abstract:
Una delle principali applicazioni in cui i polimeri elastomerici trovano impiego è come componente strutturale nella formulazione di mescole per pneumatici. Tuttavia, affinché il prodotto finale possa soddisfare gli standard di prestazione richiesti, è necessario introdurre nella matrice polimerica dei componenti (filler) inorganici (Silice e Carbon Black). Sotto questo profilo, la compatibilità tra la fase polimerica e inorganica è dunque un aspetto di cruciale importanza. In questo contesto si colloca il presente progetto di dottorato, che ha come obiettivo quello di sviluppare un’innovativa
APA, Harvard, Vancouver, ISO, and other styles
5

Kub, Christopher. "Hyperbranched conjugated polymers: an investigation into the synthesis, properties and postfunctionalization of hyperbranched poly(phenylene vinylene-phenylene ethynylene)s." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34838.

Full text
Abstract:
There are two general ways to introduce functionalities into a polymeric structure: functionalization of the monomeric units before polymerization and postfunctionalization of the preformed polymer. Building libraries of polymers with different functionalities can be completed with significantly less effort by the second method, as each postfunctionalization of a single batch of polymeric backbone can involve as little as one synthetic step. One method of building a polymeric backbone for postfunctionalization involves the synthesis of hyperbranched conjugated polymers (HCPs) from AB2 monome
APA, Harvard, Vancouver, ISO, and other styles
6

Gikonyo, Barnabas Kimaru. "Silicon backbone polymers as nerve growth substrates : an odyssey /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1481666341&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.

Full text
Abstract:
Thesis (Ph. D.)--Southern Illinois University Carbondale, 2007.<br>"Department of Chemistry and Biochemistry." Keywords: Polysilane, Silicon backbone polymers, PC-12 cell growth, Nerve cell growth, Fibronectin, Polymers, Nerve growth substrates. Includes bibliographical references (p. 131-142). Also available online.
APA, Harvard, Vancouver, ISO, and other styles
7

Nur, Yusuf. "Electrochemical Polymerization Of Trihaloalkane Monomers To Form Branched C-backbone Polymers." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613168/index.pdf.

Full text
Abstract:
Polycarbynes ( poly(hydridocarbyne), poly(methylcarbyne) and poly(phenylcarbyne) ) are a class of network polymers which are primarily composed of tetrahedrally hybridizated carbon atoms which have hydrogen, methyl or phenyl pendant group linked via three carbon-carbon single bonds to form a three dimensional network of fixed rings. This backbone oers unusual properties on the polymer including thermal decomposition to form diamond and diamondlike carbon. In this thesis, polycarbynes were synthesized by electrolytical reduction of trihaloorganocompounds, namely chloroform, hexachloroethane, 1,
APA, Harvard, Vancouver, ISO, and other styles
8

Rust, Tarik [Verfasser]. "Stimuli-Responsive Backbone-Degradable (Co-)Polymers for Drug Delivery / Tarik Rust." Paderborn : Universitätsbibliothek, 2021. http://d-nb.info/1237748437/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Okerio, Jaspher Mosomi. "Synthesis of fluorescent polymers with coumarin backbones by "click" polymerization." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020132.

Full text
Abstract:
Click chemistry is one of the growing areas of research which is applied in the design and synthesis of a wide range of polymeric architectures. This investigation focuses on the synthesis of fluorescent coumarin based polymers by “click” A-B step growth polymerization process and evaluation of their photophysical properties. Non-fluorescent azide-alkyne functionalized coumarin-based monomers were synthesized in multiple steps from 2,4-dihydroxybenzaldehyde in reasonable yields. Polymers with coumarin backbone were synthesized from azide-alkyne functionalized coumarin monomers via the Cu(I) ca
APA, Harvard, Vancouver, ISO, and other styles
10

Babur, Tamoor [Verfasser]. "Structure and relaxation dynamics of comb-like polymers with rigid backbone / Tamoor Babur." Halle, 2017. http://d-nb.info/1139253743/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Polymer backbone"

1

L, St Clair Terry, and Langley Research Center, eds. LARC-IA: A flexible backbone polyimide. National Aeronautics and Space Administration, Langley Research Center, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

L, St Clair Terry, and Langley Research Center, eds. LARC-IA: A flexible backbone polyimide. National Aeronautics and Space Administration, Langley Research Center, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

L, St Clair Terry, and Langley Research Center, eds. LARC-IA: A flexible backbone polyimide. National Aeronautics and Space Administration, Langley Research Center, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Mark, James E., Dale W. Schaefer, and Gui Lin. The Polysiloxanes. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780195181739.001.0001.

Full text
Abstract:
Polysiloxanes are the most studied inorganic and semi-inorganic polymers because of their many medical and commercial uses. The Si-O backbone endows polysiloxanes with intriguing properties: the strength of the Si-O bond imparts considerable thermal stability, and the nature of the bonding imparts low surface free energy. Prostheses, artificial organs, objects for facial reconstruction, vitreous substitutes in the eyes, and tubing take advantage of the stability and pliability of polysiloxanes. Artificial skin, contact lenses, and drug delivery systems utilize their high permeability. Such bio
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Polymer backbone"

1

Wohlfarth, Ch. "Second virial coefficient of polyphenylene (5 backbone phenylene rings per repeat unit)." In Polymer Solutions. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_655.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Yang, Jiyuan, and Jindřich Kopeček. "Backbone Degradable and Coiled-Coil Based Macromolecular Therapeutics." In Bioinspired and Biomimetic Polymer Systems for Drug and Gene Delivery. Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527672752.ch1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Tyler, David R., Jeffrey J. Wolcott, Gregory F. Nieckarz, and Steve C. Tenhaeff. "New Class of Photochemically Reactive Polymers Containing Metal—Metal Bonds Along the Polymer Backbone." In ACS Symposium Series. American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1994-0572.ch036.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pugh, Coleen, and Virgil Percec. "Effect of the Polymer Backbone on the Thermotropic Behavior of Side-Chain Liquid Crystalline Polymers." In ACS Symposium Series. American Chemical Society, 1988. http://dx.doi.org/10.1021/bk-1988-0364.ch008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kim, Myoung-Hee, Jun Lee, Myong-Shik Cho, and Hee-Gweon Woo. "High Functional Inorganic Polymers Containing Main Group 13 – 16 Elements in the Polymer Backbone Chain." In Advanced Functional Materials. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19077-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Aydin, Omer, Dilek Kanarya, Ummugulsum Yilmaz, and Cansu Ümran Tunç. "Determination of Optimum Ratio of Cationic Polymers and Small Interfering RNA with Agarose Gel Retardation Assay." In Methods in Molecular Biology. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2010-6_7.

Full text
Abstract:
AbstractNanomaterials have aroused attention in the recent years for their high potential for gene delivery applications. Most of the nanoformulations used in gene delivery are positively charged to carry negatively charged oligonucleotides. However, excessive positively charged carriers are cytotoxic. Therefore, the complexed oligonucleotide/nanoparticles should be well-examined before the application. In that manner, agarose gel electrophoresis, which is a basic method utilized for separation, identification, and purification of nucleic acid molecules because of its poriferous nature, is one
APA, Harvard, Vancouver, ISO, and other styles
7

Nabeshima, Y., Z. L. Ding, G. H. Chen, et al. "Slow Release of Heparin from a Hydrogel Made from Polyamine Chains Grafted to a Temperature-Sensitive Polymer Backbone." In Advanced Biomaterials in Biomedical Engineering and Drug Delivery Systems. Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-65883-2_93.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

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

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Chivers, T. "S-Polymers with Organic Groups in the Backbone." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145326.ch92.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lukeman, Philip. "Nucleic Acid Nanotechnology: Modified Backbones and Topological Polymer Templates." In DNA and RNA Nanobiotechnologies in Medicine: Diagnosis and Treatment of Diseases. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-662-45775-7_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Polymer backbone"

1

Hoots, J. E. "Tagged Polymer Technology for Improved Cooling System Monitoring and Control." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93397.

Full text
Abstract:
Abstract A new polymer for scale-inhibiting and corrosion-inhibiting water treatment programs has been developed. This new patented polymer contains a fluorescent tagging agent bonded to the polymer backbone. The fluorescent tag allows polymer concentration to be continuously monitored and controlled with commercially-available equipment.1-3 Changes in polymer concentration due to cooling system demand can be measured and compensated for automatically. This new tagged polymer compliments TRASAR® Technology which uses inert tracers to monitor/ control product dosages.4,5 Practical consideration
APA, Harvard, Vancouver, ISO, and other styles
2

Saunders, Matt. "RTV Silicone Maintenance Coatings." In SSPC 2018. SSPC, 2018. https://doi.org/10.5006/s2018-00061.

Full text
Abstract:
Silicone room temperature vulcanizing (RTV) polymer based coatings were designed with maintenance, and extending asset design life in mind. This technology can be tailored to be used as the backbone for a wide variety of coating applications by taking advantage of the inherent properties of RTV silicone.
APA, Harvard, Vancouver, ISO, and other styles
3

Skordalou, Georgia, and Konstantinos D. Demadis. "pH-Responsive Copolymers as Silica Scale Inhibitors." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17703.

Full text
Abstract:
Abstract In the present work two synthetic co-polymers, U-PVPyPEGMA-H and Q-PVPyPEGMA-H, with pyridine and polyethylene glycol grafts on a methacrylate backbone, were studied for their potential to influence silicic acid polycondensation in vitro in silicate-supersaturated (500 ppm, 8.3 mM) aqueous solutions. The aim of this study was to evaluate the impact of several experimental parameters on the silicic acid polycondencation process. Working pH plays a significant role on the silicification reaction either in the absence or presence of polymers. In the presence of polymers, pH affects the p
APA, Harvard, Vancouver, ISO, and other styles
4

Wilson, David, Kelly Harris, and Matthew Toole. "Towards a Better Environment: Improved Biodegradability from a Polymeric Scale Inhibitor." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10047.

Full text
Abstract:
Abstract Global awareness of the impact of chemicals on the environment has been growing over a number of years. This has led to the demand for environmentally responsible water treatment programs with low impact on the environment. The backbone of traditional water treatment programs rely on phosphorus and heavy metals to control scale and corrosion and typically do not biodegrade significantly. The discharge of such chemicals is coming under regulatory pressure and their use is being increasingly restricted. This paper describes a new polymaleic acid based polymer with low toxicity and highe
APA, Harvard, Vancouver, ISO, and other styles
5

Nava, Hildeberto, and William Carroll. "Preparation of Prepregs Using Thermosetting Resins with Control Rheology." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05509.

Full text
Abstract:
Abstract Several approaches are found in the literature together with a large number of patents describing the preparation of prepregs. It is very desirable that prepregs are produced using simplified manufacturing processes. The prepreg must be pliable, easy to handle, be shelf stable and meet the end use performance requirements for which it was designed. Resin systems should have low viscosities to facilitate impregnation of the reinforcement and air removal during the process. The prepreg should be tack free; the resin must not drain or migrate and cure at a specific temperature within a s
APA, Harvard, Vancouver, ISO, and other styles
6

Okocha, Cyril, Tao Chen, Alex Thornton, and Qiwei Wang. "Development of a Squeezable Iron Sulfide Scale Inhibitor for Ultra-Tight Sandstone." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17896.

Full text
Abstract:
Abstract Iron sulfide scaling can manifest both downhole and topside in sour production scenarios. Topsides development can be mitigated via continuous strategic application of an appropriate sulfide scale inhibitor package, however downhole sulfide scaling presents a more complex challenge. Continuous downhole application of sulfide scale inhibitors via capillary string and valve, or routed to valve via existing gas lift architecture are two common delivery options available to the operator, but are unfortunately both limited to providing scale control at injection valve depth and up-string.
APA, Harvard, Vancouver, ISO, and other styles
7

Yan, Qingling, Hongyuan Chen, Yiling Zhang, Jinyun Zhao, and Xigao Jian. "Novel Poly(Phthalazinone Ether Sulfone Ketone) Heat Resistant Coating1." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08048.

Full text
Abstract:
Abstract Novel poly(phthalazinone ether sulfone ketone) (PPESK) synthesized in our laboratory, has shown good solubility and very high glass transition temperature (Tg), in the range of 263±305℃, by the virtue of the introduction of twist non-coplanar phthalazinone moieties into the polymer’s backbone. The resin was dissolved in organic solvent, and baked to form varnish. The effects of polymers’ sulfone/ketone molar ratios (S/K) and intrinsic viscosity on the coating’s properties were studied, either. The result showed that the varnish has excellent adhesion to metal, impact resistance and fl
APA, Harvard, Vancouver, ISO, and other styles
8

Herman, W. N., J. A. Cline, J. M. Hoover, A. Chafin, G. A. Lindsay, and K. J. Wynne. "Nonlinear Optical Properties of Self-Assembled Mainchain Polymer Films." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.28.

Full text
Abstract:
We report second harmonic generation measurements on multilayers of two interleaved mainchain polymers fabricated by Langmuir Blodgett (LB) deposition. LB processing1 offers advantages over electric-field poling in that it can be done at room temperature (hence the kT Brownian motion is much less) without the strong electric fields that can lead to film damage during corona poling. Mainchain polymers are inherently more stable than sidechain polymers because both ends of the chromophore are attached to the backbone of the polymer, whereas only one end of the chromophore is attached to the back
APA, Harvard, Vancouver, ISO, and other styles
9

Schellenberg, F. M., R. L. Byer, and R. D. Miller. "Substituted polysilanes for integrated optics." In Integrated Photonics Research. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/ipr.1990.mf5.

Full text
Abstract:
Linear polysilanes are polymers consisting of a long catenated silicon backbone, with two side groups, usually carbon based, attached to each Si atom in the backbone chain. Electronic and structural properties can vary significantly with the side group, but common to all polysilanes is a degree of electron delocalization along the σ-bonded backbone. This delocalization results in large oscillator strengths for excitations polarized parallel to the backbone. Absorption of UV photons decays either by UV fluorescence or scission of the polymer backbone, making these materials useful as deep UV ph
APA, Harvard, Vancouver, ISO, and other styles
10

Tsustumi, Naoto, Osamu Matsumoto, Wataru Sakai, and Tsuyoshi Kiyotsukuri. "Novel Nonlinear Optical Polymers for Second Harmonic Generation." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.5.

Full text
Abstract:
Recently, we have synthesized a new type of NLO phore whose dipole moment is aligned transverse to the main chain backbone, and resultant poled polymer film shows large second harmonic efficiency with its good thermal stability. In this paper, we present the second harmonic generation (SHG) properties of this novel type of NLO polymer material whose dipole moment is aligned transverse to the main chain backbone and compare these properties to those for the polymer with NLO phore in the main chain backbone.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Polymer backbone"

1

Percec, Virgil, Dimitris Tomazos, and Reginal A. Willingham. The Influence of the Polymer Backbone Flexibility on the Phase Transitions of Side Chain Liquid Crystal Polymers Containing 6-(4-Methoxy-Beta-Metylstyryl) Phenoxy)Hexyl Side Groups. Defense Technical Information Center, 1989. http://dx.doi.org/10.21236/ada208821.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Matyjaszewski, Krzysztof. Catalysts and Initiators as Instruments Controlling Structure of Polymers with Inorganic Backbone. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada235350.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Carpita, Nicholas C., Ruth Ben-Arie, and Amnon Lers. Pectin Cross-Linking Dynamics and Wall Softening during Fruit Ripening. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7585197.bard.

Full text
Abstract:
Our study was designed to elucidate the chemical determinants of pectin cross-linking in developing fruits of apple and peach and to evaluate the role of breakage cross-linkages in swelling, softening, and cell separation during the ripening. Peaches cell walls soften and swell considerably during the ripening, whereas apples fruit cells maintain wall firmness but cells separate during late stages of ripening. We used a "double-reduction" technique to show that levels of non-methyl esters of polyuronic acid molecules were constant during the development and ripening and decreased only in overr
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!