- Environment-friendly multifunctional material containing diester-based s-triazine derivative as well as preparation method and application of environment-friendly multifunctional material
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The invention discloses an environment-friendly multifunctional material containing a diester-based s-triazine derivative as well as a preparation method and application of the environment-friendly multifunctional material. The diester group-containing s-triazine derivative has a structure represented by a general formula I. The diester group-containing s-triazine derivative has the characteristics of simple preparation method, mild process conditions, easily available raw materials, low synthesis cost, high synthesis yield and the like; the derivative can be used as an extreme pressure, anti-wear, anti-friction and anti-corrosion additive, can obviously improve the bearing capacity of base oil and improve the anti-wear and anti-friction performance of the base oil, and is an environment-friendly multifunctional additive. R is a straight-chain or branched-chain alkyl group with the C atom number of 1-30.
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Paragraph 0034-0035
(2021/10/27)
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- Environment-friendly multifunctional ester group-containing s-triazine material as well as preparation method and application of environment-friendly multifunctional ester group-containing s-triazine material
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The invention discloses an environment-friendly multifunctional ester group-containing s-triazine material as well as a preparation method and application of the environment-friendly multifunctional ester group-containing s-triazine material. The ester group-containing s-triazine derivative provided by the invention has a structure as shown in a general formula I. The ester group-containing s-triazine derivative has the characteristics of simple preparation method, mild process conditions, easily available raw materials, low synthesis cost, high synthesis yield and the like; and the derivative can be used as an extreme pressure, anti-wear, anti-friction and anti-corrosion additive, can obviously improve the bearing capacity of base oil and improve the anti-wear and anti-friction performance of the base oil, and is an environment-friendly multifunctional additive. In the general formula I, R is a straight-chain or branched-chain alkyl group with a C atom number of 1-30.
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Paragraph 0034-0036
(2021/10/30)
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- Symtriazine derivative multifunctional lubricating oil additive as well as preparation method and application thereof
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The invention discloses a symtriazine derivative multifunctional lubricating oil additive as well as a preparation method and application thereof. The symtriazine derivative has a structure shown as ageneral formula I. The preparation method comprises the following steps of firstly introducing dialkyl amine or dialkyl alkanolamine onto a trichlorazine structure; then, introducing 2-mercaptobenzothiazole; finally performing nucleophilic substitution with dialkyl amine or dialkyl alkanolamine to obtain the symtriazine derivative multifunctional lubricating oil additive shown as the general formula I. The symtriazine derivative has characteristics that the preparation method is simple; the process conditions are mild; the raw materials can be easily obtained; the synthesis cost is low; the synthesis yield is high, and the like. The symtriazine derivative multifunctional lubricating oil additive can be used as the extreme pressure, wear-resistant, friction reduction and anti-corrosion additive of lubricating oil; the carrying capability of the basic oil can be obviously improved; the wear-resistant and abrasion reduction performance are improved; the additive belongs to an environment-friendly multifunctional lubricating oil additive. The general formula I is shown in the description.
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Paragraph 0035; 0036; 0044
(2018/07/28)
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- Synthesis of polyguanamines from 2-N,N-dibutylamino-4,6-dichloro-1,3,5- triazine with aromatic diamines
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Solution polycondensation of 2-N,N-dibutylamino-4,6-dichloro-1,3,5-triazine (BDCT) with various aromatic diamines, including 4,4′-oxydianiline (ODA), p-phenylenediamine (pPDA), m-phenylenediamine (mPDA), o-tolidine (oTD), 4,4′-(9-fluorenylidene)dianiline (BAFL), and 2,4-diamino-6-(N,N- dibutylamino)-1,3,5-triazine (DABT), was investigated. High molecular weight (>10,000) polyguanamines (PGs) were obtained via the polymerization of BDCT with ODA, pPDA, oTD, and BAFL at 150-180 C in N-methylpyrrolidone (NMP) for 6 h. The polymerizability with BDCT was determined on the basis of the molecular weights of the polymers and the chemical shifts of the NMR data as follows: ODA > oTD > BAFL > pPDA > mPDA ? DABT. PGs were obtained from the reaction of BDCT with ODA and mPDA in only 55-77% yield, which may be attributed to the formation of cyclic oligomers. All of the polymers showed high thermostability (5% weight-loss temperature in N2 greater than 444 C), and the polymers generated from reaction of BDCT with ODA, mPDA, and BAFL exhibited good solubility in tetrahydrofuran and polar aprotic solvents such as NMP.
- Saito, Kyohei,Nishimura, Naoya,Sasaki, Shigeko,Oishi, Yoshiyuki,Shibasaki, Yuji
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p. 756 - 763
(2013/06/26)
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- Cyclophanes of perylene tetracarboxylic diimide with different substituents at bay positions
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Cyclophanes of perylene tetracarboxylic diimides (PDIs) with different substituents at the bay positions, namely four phenoxy groups at the Impositions (1), four piperidinyl groups at the 1,7-positions (2), and eight phenoxy groups at the 1,6,7,12-positions (3) of the two PDI rings, have been synthesized by the condensation of perylene dianhydride with amine in a dilute solution. These novel cyclophanes were characterized by 1H NMR spectroscopy, MALDI-TOF mass spectrometry, electronic absorption spectroscopy, and elemental analysis. The conformational isomers of cyclophanes substituted with four piperidinyl groups at the 1,7-positions (2 a and 2 b) were successfully separated by preparative TLC. The main absorption band of the cyclophanes shifts significantly to the higher energy side in comparison with their monomeric counterparts, which indicates significant π-π interaction between the PDI units in the cyclophanes. Nevertheless, both the electronic absorption and fluorescence spectra of the cyclophanes were found to change along with the number and nature of the side groups at the bay positions of the PDI ring. Time-dependent DFT calculations on the conformational isomers 2a and 2b reproduce well their experimental electronic absorption spectra. Electrochemical studies reveal that the first oxidation and reduction potentials of the PDI ring in the cyclophanes increase significantly compared with those of the corresponding monomeric counterparts, in line with the change in the energy of the HOMO and LUMO according to the theoretical calculations.
- Feng, Junqian,Zhang, Yuexing,Zhao, Chuntao,Li, Renjie,Xu, Wei,Li, Xiyou,Jiang, Jianzhuang
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experimental part
p. 7000 - 7010
(2009/08/08)
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