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Record 1 of 7
| Record #: | 982 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrix: | dithranol (1143-38-0) |
| Salt: | lithium trifluoroacetate (LiTFA) |
| Solvent: | tetrahydrofuran (THF) |
| Recipe | 2,6-diaminotriazine-functionalized PIBs were prepared by dissolving the polymer in THF at a concentration of 20 mg/mL. Dithranol was used as matrix and dissolved in THF at a concentration of 20 mg/mL. LiTFA was used as salt and dissolved at a concentration of 10 mg/mL. The ratio of matrix:analyte:salt was 100:10:1 |
Herbst, F.; Schroter, K.; Gunkel, I.; Groger, S.; Thurn-Albrecht, T.; Balbach, J.; Binder, W.H., Aggregation and Chain Dynamics in Supramolecular Polymers by Dynamic Rheology: Cluster Formation and Self-Aggregation, Macromolecules, 43, 23, 2010, 10006-10016.
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Record 2 of 7
| Record #: | 980 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrix: | dihydroxybenzoic acid (DHB) (27138-57-4) |
| Salt: | sodium trifluoroacetate (NaTFA), silver trifluoracetate (AgTFA) |
| Solvent: | tetrahydrofuran (THF) |
| Recipe | Samples were prepared with a DHB matrix (20 mg/mL), analyte solution of 10 mg/mL and sodium trifluoroacetate for PEGs and silver trifluoroacetate for PIBs (5 mg/mL) as the cationizing agent in THF. The solutions were mixed in a 10:6:3 (v/v) ratio (matrix/analyte/cationization agent). |
Nagy, M.; Zsuga, M.; Racz, D.; Keki, S., Synthesis of Phenanthroline-Terminated Polymers and Their Fe(II)-Complexes, Journal of Polymer Science Part A: Polymer Chemistry, 48, 12, 2010, 2709-2715.
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Record 3 of 7
| Record #: | 981 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrices: | 1,8,9-anthracenetriol (dithranol) (1143-38-0) trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene]malononitrile (DCTB) (300364-84-5) |
| Salt: | silver trifluoroacetate (AgTFA), lithium trifluoroacetate (LiTFA) |
| Solvent: | tetrahydrofuran (THF) |
| Recipe | The matrix solution was prepared by dissolving 1,8,9-anthracenetriol (dithranol) or trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene]malononitrile (DCTB) in THF at a concentration of 20 mg/mL. Polymer samples were dissolved in THF at a concentration of 20 mg/mL. AgTFA and LiTFA were dissolved at a concentration of 10 mg/mL in THF. The solutions of the matrix, the polymer and the salt were mixed in a volume ratio of 100:50:4 and 1 μl of each mixture was spotted on the MALDI-target plate. |
Schulz, M.; Tanner, S.; Barqawi, H.; Binder, W.H., Macrocyclization of Polymers via Ring-Closing Metathesis and Azide/Alkyne-"Click"-Reactions: an Approach to Cyclic Polyisobutylenes, Journal of Polymer Science Part A: Polymer Chemistry, 48, 3, 2010, 671-680.
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Record 4 of 7
| Record #: | 1097 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrices: | 1,8,9-anthracenetriol (dithranol) (1143-38-0) trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene]malononitrile (DCTB) (300364-84-5) |
| Salt: | potassium chloride (KCl),silver trifluoroacetetate (AgTFA) |
| Solvent: | chloroform; acetone (KCl) |
| Recipe | The matrix solution was prepared by dissolving 1,8,9-anthracenetriol (dithranol) or trans-2-[3-(4-tert-butylphenyl)-2methyl-2-propenylidene]malononitrile (DCTB) in chloroform at a concentration of 20 mg mL−1. Polymers were dissolved in chloroform at a concentration of 20 mg mL−1; salt silver trifluoroacetate (AgTFA) and potassium chloride (KCl) were dissolved at a concentration of 10 mg mL−1 in chloroform and acetone, respectively. Solutions of the matrix, the polymer, and the salt were mixed in a volume ratio of 100:10:1 and 1 mL of each mixture was spotted on the MALDI-target plate. |
Adekunle, O.; Herbst, F.; Hackethal, K.; Binder, W.H., Synthesis of Nonsymmetric Chain End Functionalized Polyisobutylenes, Journal of Polymer Science Part A: Polymer Chemistry, 49, 13, 2011, 2931-2940.
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Record 5 of 7
| Record #: | 825 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrix: | dithranol (1143-38-0) |
| Salt: | potassium trifluoroacetate (KTFA) |
| Solvent: | tetrahydrofuran (THF) |
| Recipe | The matrix solution was prepared by dissolving dithranol in THF at a concentration of 20 mg/mL. CF3COOAg (AgTFA) was dissolved in THF (10 mg in 1 mL) to prepare the stock solution. The polymer solution was made by dissolving 10 mg in 1 mL of THF. The polymer, dithranol, and AgTFA solution were mixed in 10:10:1 volume ratio, and 1 μL of the resulting solution was evaporated on the sample holder. |
Tripathy, R.; Ojha, U.; Faust, R., Syntheses and Characterization of Polyisobutylene Macromonomers with Methacrylate, Acrylate, Glycidyl Ether, or Vinyl Ether End-Functionality, Macromolecules, 42, 12, 2009, 3958-3964.
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Record 6 of 7
| Record #: | 181 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrix: | all-trans retinoic acid (302-79-4) |
| Salt: | N/A |
| Solvent: | tetrahydrofuran |
| Recipe | The polyisobutylene was sulfonated to produce ionic species for analysis by MALDI TOF MS. In a dry beaker were combined 20 mL of CH2 Cl2 and 7 mL of acetic anhydride. Concentrated sulfuric acid (2.3 mL) was added to this mixture with stirring over a period of 10 min. This acetyl sulfate solution was then added to a 0.01 M solution of PIB in CH2Cl2. This resulting reaction mixture was kept in a 50 °C water bath, with stirring, for 3 h. Then the reaction mixture was slowly poured into 500 mL of 0.1 M aqueous NaOH solutions with stirring. The pH value of the water phase was monitored. If the solution went acidic, more NaOH solution was added until it became slightly basic. The polymer floated on the surface of the water. The wet polymers were collected, and excess water was removed by pressing them between two pieces of filter paper, following by vacuum-drying for at least 1 day. MALDI TOF MS Analysis: A 10 mg/mL matrix solution and a 10 mg/mL polymer solution were prepared in THF. A volume of 10 µL matrix solution was then mixed with 2 μL of the polymer solution. An aliquot of 0.5 μL of the resulting mixture was spotted on the MALDI sample plate and air-dried before analysis. All spectra were obtained in the negative ion mode. |
Ji, H.; Sato, N.; Nakamura, Y.; Wan, Y.; Howell, A.; Thomas, Q.A.; Storey R.F.; Noidez, W.K.; Mays, J.W., Characterization of Polyisobutylene by Matrix-Assisted Laser Desorptoion Ionization Time-of-Flight Mass Spectrometry, Macromolecules, 35, 2002, 1196-1199.
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Record 7 of 7
| Record #: | 1096 |
| Class ID: | 2.14 |
| Class Name: | polydiene |
| Polymer: | polyisobutylene (PIB) |
| Matrix: | dithranol (1143-38-0) |
| Salt: | silver trifluoroacetate (AgTFA) |
| Solvent: | tetrahydrofuran (THF) |
| Recipe | The samples were prepared with a dithranol matrix dissolved in THF (20 mg/mL). The solutions of the polymers in THF were made in a concentration of 10 mg/mL. To enhance the cationization of PIBs, silver trifluoroacetate (AgTFA) in THF (5 mg/mL) was added to the corresponding matrix/analyte solutions. The solutions were mixed in a 10:2:1 v/v ratio (matrix:analyte:cationization agent). A volume of 0.5−1.0 μL of these solutions was deposited onto the sample plate (stainless steel) and allowed to air-dry. |
Dimitrov, P.; Emert, J.; Hua, J.; Sandor, K.; Faust, R., Mechanism of Isomerization in the Cationic Polymerization of Isobutylene, Macromolecules, 44, 7, 2011, 1831-1840.
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