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xman27

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The reaction condition was set on the base of the preferable condition of sample P (40 wt %, 40 ¡æ, 6 h, 4), and then changing one factor while fixing the others.

2. µ±¼îŨ¶È¹ý¸ßʱ£¬CTAÈܽâ¶È½µµÍ£¬¶øÇÒ²¿·Ö´æÔÚµÄGTMACË®½âÉú³É¸±²úÎï¶þ´¼µÄËÙ¶ÈÒ²ÏÔÖøÔö¼Ó¡£

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At high alkaline concentration, the solubility of CTA was reduced and the hydrolysis of the partly existed epoxide to form the diol was increased.

ÎÒ¾õµÃ×Ô¼ºµÄ·­ÒëÓеã¹Ö£¬Çë¸÷λÇëÖ¸½Ì£¡»òÕ߸ɴà°ïÎÒÖØÐ´Ò»¸ö¡£Ð»Ð»£¡£¡

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phyweiw

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

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xman27(½ð±Ò+4,VIP+0): 12-2 22:19
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Set the comparatively good reaction condition of sample P  (40 wt %, 40 ¡æ, 6 h, 4) as reference, and then adjust one parameter with the rest fixed respectively.
2. µ±¼îŨ¶È¹ý¸ßʱ£¬CTAÈܽâ¶È½µµÍ£¬¶øÇÒ²¿·Ö´æÔÚµÄGTMACË®½âÉú³É¸±²úÎï¶þ´¼µÄËÙ¶ÈÒ²ÏÔÖøÔö¼Ó¡£

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At high alkaline concentration, the solubility of CTA was reduced and the hydrolysis of the partly existed epoxide to form the diol was increased.
In case the alkaline concentration is overhigh, the solubility of CTA decreases and the hydrolysis speed of the partly existed epoxide is significantly increased.(ºó°ë²¿ÎÒÖÐÎÄÒâ˼¶¼Åª²»¶®£¬ËùÒÔ²»ºÃÌæÄãŪÁË)
2Â¥2009-12-02 21:54:54
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syh9288

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xman27(½ð±Ò+4,VIP+0): 12-3 09:51
zap65535(½ð±Ò+2,VIP+0):²¹·¢ 12-22 00:19
Based on the conditions that product P can be attained (WT %(alkali):40%, 40 ¡æ, 6 h,MR(CTA to ¦Â-chintin) :4),other factors is in the same level, change
Alkali concentration,temperature,reaction time and volume of CTA seperately.

When the alkali concentration is high,the solubility of CTA can be reduced,and the formation rate of byproduct(Bibol) from the hydrolysis of partly-existing GTMAC greatly increased
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3Â¥2009-12-03 00:02:45
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goodtimega

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
xman27(½ð±Ò+4,VIP+0): 12-3 09:51
zap65535(½ð±Ò+2,VIP+0):²¹·¢ 12-22 00:19
The reaction condition was set on the basis of the desired condition of sample P (40 wt %, 40 ¡æ, 6 h, 4), and then changing an individual factor.

At high alkaline concentration, the solubility of CTA is reduced and the hydrolysis of the diol withpartial epoxide is increased.
4Â¥2009-12-03 01:54:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

1589006551

¡ï ¡ï ¡ï ¡ï
xman27(½ð±Ò+4,VIP+0): 12-5 09:36
Take the good product P response condition (alkali quantity percentage density 40%, temperature 40¡æ, reaction time 6h, CTA with Beta - carapace element unit mole compared to as 4) is a datum, fixes other factors to change the caustic concentration, the temperature, the reaction time and CTA separately joins the quantity.
5Â¥2009-12-03 15:50:44
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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