Tag: M.W=200-250

Sower, L. L. published the artcileRecovery of Eucosma sonomana (Lepidoptera: Tortricidae) populations after mating-disruption treatments, Quality Control of 16974-11-1, the publication is Journal of Economic Entomology (1986), 79(6), 1645-7, database is CAplus.

Where damage by western pine shoot borers (E. sonomana) was initially reduced 80% by pheromone mating-disruption treatments, damage began to increase 1-2 generations (years) after treatment. Most benefits of treatment were realized within 2 and, at most, 3 generations. Plots treated in successive years maintained reduced damage levels.

Journal of Economic Entomology published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C8H10O2, Quality Control of 16974-11-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Busson, P. published the artcilePreparation of Mesogen-Functionalized Dendrimers for Second-Order Nonlinear Optics, Application In Synthesis of 50670-76-3, the publication is Macromolecules (2002), 35(5), 1663-1671, database is CAplus.

Liquid crystalline dendrimers with peripheral mesogen-containing units have been prepared Multistep synthesis with several selective reactions was used in the preparation of the mesogen-containing mols., 4”-[10-(hydroxycarbonyl)decyloxy]phenyl 4-[4′-(2-(R)-octyloxy)-3′-nitrophenyl]benzoate and 4”-[10-(hydroxycarbonyl)decyloxy]biphenyl 4-[4′-(2-(R)-octyloxy)-3′-nitrophenyl]benzoate. Both mols. possessed an electron-accepting nitro group placed perpendicular to the long axis of the mols. in order to enhance the nonlinear optical activity. A second generation hydroxyl functional aliphatic dendrimer based on the dihydroxy acid, 2,2-bis(hydroxymethyl)propionic acid, was used as dendritic scaffold and was subsequently functionalized with the aforementioned groups. The purity and structure of the two liquid crystalline dendrimers were determined by ¹H NMR spectroscopy, size exclusion chromatog., and elemental anal. The synthesis of both the mesogen-containing units and the liquid crystalline dendrimers is described in detail. Investigation of the liquid crystalline properties of the materials by differential scanning calorimetry and optical microscopy showed that they exhibited different mesophases, including the chiral smectic C phase. Ferroelec. switching was observed in this tilted phase, and electrooptical properties, including tilt angle and spontaneous polarization measurements, were investigated. Finally, the nonlinear optical properties of one of the materials were preliminary characterized.

Macromolecules published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Application In Synthesis of 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ohtake, Toshihiro published the artcileLiquid-Crystalline Complexes of Mesogenic Dimers Containing Oxyethylene Moieties with LiCF₃SO₃: Self-Organized Ion Conductive Materials, SDS of cas: 50670-76-3, the publication is Chemistry of Materials (2000), 12(3), 782-789, database is CAplus.

Mesomorphic dimeric compounds consisting of rigid mesogenic cores and flexible oxyethylene chains have been prepared as liquid-crystalline materials capable of complexing with ionic species. The incorporation of LiCF₃SO₃ into these materials results in the induction of smectic A phases and significant mesophase stabilization. The ion-dipole interactions between lithium ions and oxyethylene moieties have stabilized the mesomorphic layer structures. Ionic conductivities have been measured for the complexes forming homeotropically aligned mol. orientation of smectic phases. The highest value of conduction, which is observed for the direction parallel to the layer in the smectic A phase, is 5.5 × 10^-4 S cm^-1. These results suggest that the complexes of LiCF₃SO₃ with mesogenic rod-coil-rod mols. containing oxyethylene chains can function as self-organized ion conductive materials.

Chemistry of Materials published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, SDS of cas: 50670-76-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Otsu, Takayuki published the artcileSolid-phase block copolymer synthesis by the iniferter technique, Application of Benzyl diethylcarbamodithioate, the publication is Macromolecules (1986), 19(7), 2087-9, database is CAplus.

The synthesis of pure block copolymers free from homopolymer was attempted by using diethyldithiocarbamate derivatives attached to a dense polystyrene  [9003-53-6]el through a hydrolyzable ester spacer as a solid photoiniferter. The photopolymerization of styrene proceeded via a living radical mechanism, i.e., both yield and mol. weight of the polystyrene isolated by hydrolysis increased with increased reaction time. Repeated photopolymerization of vinyl monomers and solvent-extraction of the homopolymers produced, followed by hydrolysis, gave the pure triblock copolymers.

Macromolecules published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Application of Benzyl diethylcarbamodithioate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Lee, Myongsoo published the artcileLiquid-crystalline rod-coil polymers based on poly(ethylene oxide)s and the influence of the complexation of LiCF₃SO₃ on the liquid-crystalline assembly, Formula: C15H14O3, the publication is Journal of Materials Chemistry (1996), 6(7), 1079-1086, database is CAplus.

The synthesis and characterization of rod-coil polymers of Et 4′-(4′-oxy-4-biphenylcarbonyloxy)-4-biphenylcarboxylate with PEO of 3 , 7, 12 and 16 (A16) ethylene oxide units, of 4′-(4′-oxy-4-phenylcarbonyloxy)-4-biphenylcarboxylate with PEO of 16 units, and of Et 4′-oxy-4-biphenylcarboxylate with PEO of 16 ethylene oxide units are described. All the rod-coil polymers except the one with 16 units display a layered smectic mesophase and, in particular, A16 shows a microphase separated morphol. The complexes of A16 with ≤0.3 mol of LiCF₃SO₃ per mol. of ethylene oxide units are also prepared The rod-coil polymer A16 exhibits an enantiotropic smectic A mesophase in addition to an smectic A phase. In contrast with the complexes with 0.01-0.1 mol of LiCF₃SO₃, the complexes with 0.2 and 0.3 mol do not exhibit any smectic mesophases; however, they display a cylindrical micellar mesophase.

Journal of Materials Chemistry published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C15H14O3, Formula: C15H14O3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ishizu, Koji published the artcileDegree of branching of hyperbranched polystyrenes via a controlled radical mechanism of an inimer: Determination by a kinetic approach, Computed Properties of 3052-61-7, the publication is Journal of Applied Polymer Science (2005), 96(5), 1810-1815, database is CAplus.

We studied, with a kinetic approach, the living nature and degree of branching (DB) of the formation of hyperbranched polystyrene by the free-radical photopolymerization of 2-(N,N-diethyldithiocarbamyl)methylstyrene in benzene. The free-radical polymerization proceeded with a living radical mechanism. Subsequently, we treated the kinetics of the initiation and propagation steps of the active A* and B* (side-group) sites with model compounds The degradation rates of two types of dithiocarbamate groups at the A and B sites agreed well with theor. trends for C-S bond dissociation energies predicted by the d. functional theory for model compounds The reactivity of the initiating B* groups was greater than that of the propagating A* groups. DB of the hyperbranched polymers was estimated to be 0.31 with both reaction rates in terms of Mueller’s equation. This result supported the DB value (0.39) estimated from NMR data. The hyperbranched mols. obtained in this work were not perfectly dendritic but had somewhat defective structures.

Journal of Applied Polymer Science published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Computed Properties of 3052-61-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ishizu, Koji published the artcileKinetics of Hyperbranched Polystyrenes by Free Radical Polymerization of Photofunctional Inimer, Application In Synthesis of 3052-61-7, the publication is Macromolecules (2002), 35(9), 3781-3784, database is CAplus.

Kinetics of hyperbranched polystyrene was studied by free radical polymerization of photofunctional inimer CH₂=CH-p-C₆H₄-CH₂SC(S)N(Et)₂. The degree of branching was also studied. Results demonstrated that d. functional theory calculations provide a reliable and quant. prediction of exptl. observed trends in C-S bond dissociation energies for several model compounds

Macromolecules published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Application In Synthesis of 3052-61-7.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Yoshimi, Yasuo published the artcileSize of heparin-imprinted nanoparticles reflects the matched interactions with the target molecule, Name: Benzyl diethylcarbamodithioate, the publication is Sensors (2019), 19(10), 2415, database is CAplus and MEDLINE.

It has been shown that the faradic current at an electrode grafted with molecularly imprinted polymer (MIP) is sensitive to the specific target mol. used as the template. This phenomenon is applicable to sensors with very high selectivity, but the sensing mechanism is still a black box. We investigated the size sensitivity of nanoparticles of molecularly imprinted polymers (MIP-NPs) to a specific interaction for determination of the mechanism of the gate effect and its feasibility for new applications. Nanoparticles of poly(methacryloxy Et trimethylammonium chloride-co-acrylamide-co-methylenebisacrylamide) imprinted with heparin immobilized on glass beads were synthesized. The diameter of the MIP-NPs of heparin was increased by the presence of the heparin template but was insensitive to chondroitin sulfate C (CSC), the analog of heparin. The high selectivity of the MIP-NPs was consistent with the selectivity of electrodes grafted with a heparin-imprinted polymer in our previous studies. The quartz crystal microbalance probes immobilizing heparin or CSC were sensitive to MIP-NPs, which indicates that the binding ability of MIP-NP does not discriminate between the template and other glycosaminoglycans. These results indicate that the size of the MIP-NP is sensitive to the matched binding with the template through the imprinted cavity.

Sensors published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C4Br2N2O4S, Name: Benzyl diethylcarbamodithioate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Oki, Yoshitaka published the artcileSynthesis of AB and ABA type block copolymers of vinyl chloride using iniferter technique, Formula: C12H17NS2, the publication is Polymer Journal (Tokyo, Japan) (2002), 34(10), 736-741, database is CAplus.

The photopolymerization of vinyl chloride (VC) with benzyl N,N-diethyldithiocarbamate (BDC) or p-xylylene bis(N,N-diethyldithiocarbamate) (XDC) was carried out in 1,2-dichloroethane at 30°C. From the ¹H NMR spectra, these poly(vinyl chloride)s (PVC) were found to contain mono- or di-functional polymers which can be used for synthesizing the AB type or ABA type block copolymers, resp. The photocopolymn. of the mono-functional PVC with styrene (St) or vinyl acetate (VAc) was carried out in cyclohexanone at 30°C. The obtained copolymers were the AB type block copolymers of VC with St or VAc. The photocopolymn. of the di-functional PVC with St in cyclohexanone at 30°C gave an ABA type block copolymer of VC and St.

Polymer Journal (Tokyo, Japan) published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Formula: C12H17NS2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tamaki, Yoshio published the artcileDecreased rates of pheromonal components in attractant formulations for tea tortricid moths under field conditions, Safety of (Z)-Dodec-9-en-1-yl acetate, the publication is Nippon Oyo Dobutsu Konchu Gakkaishi (1983), 27(2), 154-6, database is CAplus.

Attractant formulations for tea tortricid moths, in rubber septums or plastic capsules, containing a 7:3:1:20 mixture of (Z)-9-tetradecenyl acetate (I) [16725-53-4], (Z)-11-tetradecenyl acetate (II) [20711-10-8], (E)-11-tetradecenyl acetate (III) [33189-72-9], and 10-methyldodecyl acetate (IV) [70711-42-1], or a 60:3:1 mixture of II, (Z)-9-dodecenyl acetate (V) [16974-11-1], and 11-dodecenyl acetate (VI) [35153-10-7] were held in the field under direct sunlight, and dissipation of these components was studied. Each component dissipated faster from plastic capsules than from rubber septums. Lower initial contents gave shorter half lives. Components with lower mol. weights dissipated faster. Ratios of residual amounts of I, II, III, and IV in rubber and plastic preparations kept for 100 and 60 days, resp., were within the optimum range for attracting the smaller tea tortrix moth, and those of II, V, and VI in rubber and plastic preparations held for 60 and 30 days, resp., were also within the optimum range for attracting the tea tortrix moth. Decreases in the effectiveness of attractant formulations for tea tortricid moths in the field were ascribed to decreases in volatilization rates and not to alterations of optimum component ratios.

Nippon Oyo Dobutsu Konchu Gakkaishi published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is 0, Safety of (Z)-Dodec-9-en-1-yl acetate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics