SU309026A1 - METHOD OF OBTAINING POLYURETHANE OLIGOMEROBES - Google Patents
METHOD OF OBTAINING POLYURETHANE OLIGOMEROBESInfo
- Publication number
- SU309026A1 SU309026A1 SU1186398A SU1186398A SU309026A1 SU 309026 A1 SU309026 A1 SU 309026A1 SU 1186398 A SU1186398 A SU 1186398A SU 1186398 A SU1186398 A SU 1186398A SU 309026 A1 SU309026 A1 SU 309026A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oligomerobes
- obtaining polyurethane
- mol
- polyurethane
- oligomers
- Prior art date
Links
- 229920002635 polyurethane Polymers 0.000 title description 5
- 239000004814 polyurethane Substances 0.000 title description 5
- XKQTZYDZYSXGBD-UHFFFAOYSA-N chloro(isocyanato)methane Chemical compound ClCN=C=O XKQTZYDZYSXGBD-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N n-butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003138 primary alcohols Chemical class 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N n-heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
Description
Известен способ получени полиуретановых олигомеров взаимодействием диизоцианатов и ди- или полигидроксилсодержащих соединений .A known method for the preparation of polyurethane oligomers by the interaction of diisocyanates and di- or polyhydroxyl-containing compounds.
С целью расширени ассортимента олигомеров предложен способ получени полиуретановых олигомеров путем взаимодействи а-галоидметилизоцианата с алифатическим монофункциональным первичным спиртом.In order to expand the range of oligomers, a method has been proposed for the preparation of polyurethane oligomers by reacting α-halomethyl isocyanate with aliphatic monofunctional primary alcohol.
Предлагаемый способ позвол ет получить полиуретановые олигомеры с молекул рным весом до 800.The proposed method provides polyurethane oligomers with a molecular weight of up to 800.
Пример 1. К 12,5 г (0,04 моль) абсолютированного метанола при 0°С и посто нном перемешивании в течение 0,5 час прибавл ют 4,6 г (0,05 моль) хлорметилизоцианата, непрерывно пропуска через реактор сухой азот. После введени всего количества хлорметилизоцианата реакционную смесь выдерживают в течение 12 час при 20-25°С, а затем при 100°С и остаточном давлении 2-3 мм рт. ст. в течение 2-3 час. Получают 2,9 г смолообразного продукта, который дважды переосаждают из ecu гептаном, и высушивают в течение 2-3 час при 100°С и остаточном давЛенин 2-3 мм рт. ст. Конечный продукт - прозрачна , бесцветна , хрупка смола сExample 1. To 12.5 g (0.04 mol) of absolute methanol at 0 ° C and continuously stirring for 0.5 hour, add 4.6 g (0.05 mol) of chloromethyl isocyanate, continuously passing dry nitrogen through the reactor. . After the introduction of the total amount of chloromethyl isocyanate, the reaction mixture is kept for 12 hours at 20-25 ° C, and then at 100 ° C and a residual pressure of 2-3 mm Hg. Art. within 2-3 hours 2.9 g of a gummy product are obtained, which is reprecipitated twice from ecu with heptane, and dried for 2-3 hours at 100 ° C and the residual pressure is 2–3 mm of mercury. Art. The final product is transparent, colorless, fragile resin with
температурой разм гчени выше 90°С. Молекул рный вес (эбуллиоскопи в CCU) 540.softening point above 90 ° С. Molecular Weight (ebullioscopy in CCU) 540.
Пайдено, %: С 38,97; 38,66; Н 6,76; 6,46; N 15,3; 15,2; С1 4,29; 4,09.Paideno,%: C 38.97; 38.66; H 6.76; 6.46; N 15.3; 15.2; C1, 4.29; 4.09.
Вычислено, %: С1(СзП5МО2)5,79 Н.Calculated,%: C1 (SzP5MO2) 5.79 N.
С 38,6; Н 5,55; N 15,0; С1 6,58.C, 38.6; H 5.55; N 15.0; C1 6.58.
Пример 2. При 0°С и посто нном пере .мешивании к раствору 5,93 г (0,08 моль) н-бутанола в 20 мл CCU добавл ют 7,35 г (0,08 моль хлорметилизоцианата. Смесь выдерживают в течение 44 час при 20-25°С и затем 10 час при остаточном давлении 2-3 мм рт. ст. и температуре 100°С. Получают 10,6 г смолы, мол. вес 816.Example 2. At 0 ° C and continuously stirring, to a solution of 5.93 g (0.08 mol) of n-butanol in 20 ml of CCU was added 7.35 g (0.08 mol of chloromethyl isocyanate. The mixture was kept for 44 hour at 20-25 ° C and then 10 hours at a residual pressure of 2-3 mm Hg and a temperature of 100 ° C. Obtain 10.6 g of a resin, mol., weight 816.
Найдено, %: С 53.8; 54,18; Н 8,26; 8,38; N 10,72; С1 3,0; 3,3.Found,%: C 53.8; 54.18; H 8.26; 8.38; N 10.72; C1 3.0; 3.3.
Вычислено, %: Cl(C6niiNO2)6,04H.Calculated,%: Cl (C6niiNO2) 6.04H.
С 53,2; Н 8,25; N 10,35; С1 4,35.C 53.2; H 8.25; N 10.35; C1 4.35.
Предмет изобретени Subject invention
Способ получени полиуретановых олигомеров , отличающийс тем, что, с целью расширени ассортимента олигомеров, а-галоидметилпзоцианат подвергают взаимодействию с алифатическим монофункциональным первичным спиртом.A method of producing polyurethane oligomers, characterized in that, in order to expand the range of oligomers, a-halomethyl phocyanate is reacted with an aliphatic monofunctional primary alcohol.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU309026A1 true SU309026A1 (en) |
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