SU536194A1 - The method of producing polystyrene - Google Patents
The method of producing polystyreneInfo
- Publication number
- SU536194A1 SU536194A1 SU2000407A SU2000407A SU536194A1 SU 536194 A1 SU536194 A1 SU 536194A1 SU 2000407 A SU2000407 A SU 2000407A SU 2000407 A SU2000407 A SU 2000407A SU 536194 A1 SU536194 A1 SU 536194A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- pressure
- styrene
- producing polystyrene
- polystyrene
- Prior art date
Links
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- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Давлекне в автоклаве 2500 атм, температура термостата (начальна ) 150° С, темпе1ратура реакционной массы в течение опытп 200-220° С. врем опыта 3 /-;нн, выход полимера 98,5%, Mr, 250000, D 2,2.The pressure in the autoclave is 2500 atm, the temperature of the thermostat (initial) is 150 ° C, the temperature of the reaction mass during the experiment is 200-220 ° C. Experiment time 3 / -; nn, polymer yield 98.5%, Mr, 250000, D 2.2 .
П р и м ер 2. Полимеризацию провод т так же, как указано в примере ,но те ллературу реакционной массы поддерживают 240- 260° С, давле1й е 3000 KzlcM, врем опыта 3 мин, выход полимера 98,5%, М-,. 102000; D 2,3.EXAMPLE 2. The polymerization was carried out as described in the example, but the temperature of the reaction mass was maintained at 240-260 ° C, a pressure of 3,000 KzlcM, a run time of 3 minutes, a polymer yield of 98.5%, M-, . 102,000; D 2.3.
Пример 3. Стирол сжимают в гидро«омпрессоре до давлени 2000 спм, использу передавливающее устройство, и нагнетают В автоклав объемом 50 с.м с встроенным электродвигателем и мешалкой. Автоклав прзд.варительно нагревают до 150° С через рубашку. Во врем опыта температуру в автоклаве регулируют, измен скорость подачи стирола.Example 3. Styrene is compressed in a hydraulic compressor to a pressure of 2000 cpm using a pressure device and injected into an autoclave with a volume of 50 cm with a built-in electric motor and a stirrer. Autoclave Przd. Pre-heated to 150 ° C through a shirt. During the test, the temperature in the autoclave is controlled by changing the styrene feed rate.
Неирореагировавший стирол отдел ют под вакуумом. ПрИ 200-220° С выход продукта около 55%, Mr, 200000; D 2,5.Non-reacted styrene is separated under vacuum. PIR 200-220 ° C, product yield about 55%, Mr, 200,000; D 2.5.
По сравнению с обычным блочным полистиролом данный продукт обладает прочностью .на разрыв и пзгиб, большей на 20%.Compared with conventional block polystyrene, this product has a tensile strength and pbg greater than 20%.
Пример 4. Полимеризацию стирола нровод т в стальной ампуле аналогично примеру 1 при давлении 1500 кг/см м температуре 180-200° С. Конверси стирола 98,5%, врем опыта 10.мин, Mr, 205000, Z) 2,1.Example 4. Styrene polymerization was carried out in a steel ampoule as in Example 1 at a pressure of 1500 kg / cm m at a temperature of 180-200 ° C. Conversion of styrene 98.5%, test time 10.min, Mr, 205000, Z) 2.1.
П р и м е р 5. Полимеризацию стирола провод т , как в примере 1, при давленииPRI me R 5. Styrene polymerization was carried out as in Example 1, at a pressure of
4000 кг/см - и температуре 180-200° С. Конверси мономера 99%, врем опыта 7 мин,4000 kg / cm - and a temperature of 180-200 ° C. The monomer conversion is 99%, the test time is 7 minutes,
Мг, 280000, D 2,20.Mg, 280,000, D 2.20.
Пример 6. Полимеризацию стирола провод т , как в нрнмере 1, при давлении 400 кг/ см и температуре 250-280° С. Выход полимера 99%, врем опыта 3 мин, Л 140000, D 2,3.Example 6. Styrene polymerization was carried out as in nrnmer 1, at a pressure of 400 kg / cm and a temperature of 250-280 ° C. Polymer yield 99%, test time 3 minutes, L 140000, D 2.3.
Значительное повышение скорости лроцесса при высоком давлении очевидно (средн скорость полимеризации 10-30%/лшн по сравне .нню с 5-10%/час в известных способах). Образцы пленок, -полученных из полистирола , сиитезированного при высоком давлеНИИ и температуре 180-200° С, сравнивали по прочности на раст жение с пленкой, полученной из стандартного блочного полистирола . Получилн соответственно значени 810 KzlcM и 640 кг/см-, хот средний молекул рный вес блочного полистирола был выше (330000).A significant increase in the process rate at high pressure is obvious (average polymerization rate is 10-30% / ln as compared to 5-10% / hour in the known methods). Samples of the films obtained from polystyrene, obtained at high pressures and at a temperature of 180–200 ° C, were compared in tensile strength with a film obtained from standard block polystyrene. The values respectively were 810 KzlcM and 640 kg / cm - although the average molecular weight of block polystyrene was higher (330,000).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2000407A SU536194A1 (en) | 1974-02-27 | 1974-02-27 | The method of producing polystyrene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2000407A SU536194A1 (en) | 1974-02-27 | 1974-02-27 | The method of producing polystyrene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU536194A1 true SU536194A1 (en) | 1976-11-25 |
Family
ID=20577140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2000407A SU536194A1 (en) | 1974-02-27 | 1974-02-27 | The method of producing polystyrene |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU536194A1 (en) |
-
1974
- 1974-02-27 SU SU2000407A patent/SU536194A1/en active
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