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Phosphine-containing polymer and polylactic acid material comprising same

A technology of polylactic acid materials and polymers, which is applied in the field of polymers to achieve the effects of good compatibility, inhibition of molecular weight decline, and reduction of leakage

Active Publication Date: 2010-06-23
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the copolymerized polylactic acid that will be developed in the future also faces this problem, and it is more serious than pure polylactic acid

Method used

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  • Phosphine-containing polymer and polylactic acid material comprising same
  • Phosphine-containing polymer and polylactic acid material comprising same
  • Phosphine-containing polymer and polylactic acid material comprising same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] [embodiment 1] preparation of formula (II) compound (R 3 =-CH 3 , d=6, the monomer is hexanediol (HDO))

[0027] First, 0.75 mol of methyl lactate and 0.125 mol of hexanediol (HDO) were added into a 250 ml reaction flask, and 0.3 mol% of tetrahexyltin (TBT) was added. Afterwards, the temperature was raised to 140° C. using an oil bath, and the reaction was carried out for 4 hours (samples were taken every hour), while distillation was carried out, and the distillate was collected. Next, the temperature was raised to 180° C., and the reaction was carried out for 2 hours, and a sample was taken. Afterwards, return to 140°C for distillation and collect the distillate. Next, the temperature was raised to 200° C., and the reaction was carried out for 2 hours, and a sample was taken. Afterwards, return to 140°C for distillation and collect the distillate. Finally, vacuum distillation was carried out at 130°C, and the distillate was collected and analyzed. 1 HNMR spectra...

Embodiment 2

[0029] [embodiment 2] preparation of formula (II) compound (R 3 =-CH 3 , d=2, the monomer is ethylene glycol (EG))

[0030] First, 0.75 mol of methyl lactate and 0.125 mol of ethylene glycol (EG) were added into a 250 ml reaction flask, and 0.3 mol% of tetrahexyltin (TBT) was added. Afterwards, the temperature was raised to 140° C. using an oil bath, and the reaction was carried out for 4 hours (samples were taken every hour), while distillation was carried out, and the distillate was collected. Next, the temperature was raised to 180° C., and the reaction was carried out for 2 hours, and a sample was taken. Afterwards, return to 140°C for distillation and collect the distillate. Next, the temperature was raised to 200° C., and the reaction was carried out for 2 hours, and a sample was taken. Afterwards, return to 140°C for distillation and collect the distillate. Finally, vacuum distillation was carried out at 130°C, and the distillate was collected and analyzed.

[003...

Embodiment 3

[0032] [embodiment 3] preparation of formula (I) compound (phosphine-containing polymer) (1)

[0033]

[0034] Take P(OEt)Cl 2 With the formula (II) compound (compound 1) prepared in Example 1 (the molar ratio is 1:1) under the action of 40° C. and diisopropylethylamine catalyst (the molar ratio with the formula (II) compound is 1.5) , reacted for 5 hours, and the compound of formula (I) (phosphine 1) was prepared.

[0035] 1 HNMR (CDCl 3 , ppm): 5.1 (lactate); 4.2-4.4 (-OCH 2 -); 1.4-1.5(-CH 2 ); 1.3-1.4(-CH 3 ).

[0036] 31 PNMR (CDCl 3 , ppm): 139 (phosphine).

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Abstract

The invention provides a phosphine-containing polymer which has the chemical formula (I) that: wherein R2=-OCH3 or -OCH2CH3; R3=-CH3; a=2-20; b=1-8; c=1-5; and d=2-6. The invention also provides a polylactic acid material comprising the phosphine-containing polymer.

Description

technical field [0001] The invention relates to a polymer, in particular to a phosphine-containing polymer and a polylactic acid material containing the phosphine-containing polymer. Background technique [0002] Since various general-purpose polymers (such as PET, Nylon, PP, polystyrene, etc.) produced from petrochemical raw materials have caused serious environmental damage such as river and ditch blockage and many pollution problems after extensive use, biodegradable materials are used Replacing the above-mentioned general-purpose polymers has become an important research topic recently. Recently, due to the improvement of the economic situation in mainland China, India, Eastern Europe and other countries, the improvement of living standards, the demand for oil and related products has increased significantly, resulting in the rapid depletion of global underground oil stocks, which has led to a rapid rise in the price of oil and related products recently. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G79/04C08L67/04C08L85/02
Inventor 魏腾芳邓克立陈俊智
Owner IND TECH RES INST