±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 182  |  »Ø¸´: 3
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

huangxz

Ìú³æ (СÓÐÃûÆø)

[½»Á÷] Èý¾ä»°£¬ÖÐÒëÓ¢

ÔÚôȼ׻ù»¯·´Ó¦¹ý³ÌÖУ¬¼î»¯¼×¿ÇËØ·ÖÉ¢ÔÚÈÜÓÐÂÈÒÒËáµÄÒì±û´¼ÖУ¬ÂÈÒÒËỺÂýµÄÉøÈë¼î»¯¼×¿ÇËØ¿ÅÁ£ÖУ¬ÏÈÓë¼î»¯¼×¿ÇËØ¿ÅÁ£µÄÍâ±í²ã·¢Éú·´Ó¦È»ºóÔÙÓëÄÚ²ãµÄ¼î»¯¼×¿ÇËØ·´Ó¦

¼î»¯¼×¿ÇËØ£ºalkali chitin
ôȼ׻ù»¯£ºCarboxymethylation
ÂÈÒÒË᣺chloroacetic acid
Òì±û´¼£ºisopropanol

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

TellNoOne

ľ³æ (СÓÐÃûÆø)

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
huangxz(½ð±Ò+6,VIP+0): 10-24 14:16
during a carboxymethylation process, alkali chitin is dispersed in the isopropanol solution of chloroacetic acid.  The chloroacetic acid slowly immigrates into alkali chitin particle and reacts first with its outer layer and then with the alkali chitin of its inner layer.
2Â¥2009-10-23 08:42:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zdongyun

ľ³æ (СÓÐÃûÆø)

¡ï ¡ï ¡ï
huangxz(½ð±Ò+3,VIP+0): 10-24 14:21
During the process of carboxymethylation, alkali chitin is dispersed in the isopropanol solution with the dissolved chloroacetic acid.  The chloroacetic acid permeating into alkali chitin particle reacts with its outer layer first, and then with the inside alkali chitin.
3Â¥2009-10-23 09:46:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yjhorn

ľ³æ (ÕýʽдÊÖ)

¡ï
huangxz(½ð±Ò+1,VIP+0): 10-24 14:21
When carboxymethylation reaction takes place, alkali chitin will disperse in isopropanol with chloroacetic acid. Chloroacetic acid will permeate slowly into the particles of alkali chitin or react with the outer layer of alkali chitin and then with the inner.
ÈÏʶ´ó¼ÒÊÇÔµ·Ö°¡£¡
4Â¥2009-10-23 15:32:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ huangxz µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0703×Ü·Ö331Çóµ÷¼Á +6 ZY-05 2026-04-04 6/300 2026-04-04 14:49 by dongzh2009
[¿¼ÑÐ] µ÷¼Á +5 ÐܶþÏëÉϰ¶ 2026-04-04 5/250 2026-04-04 13:51 by ССÊ÷2024
[¿¼ÑÐ] 329Çóµ÷¼Á +11 miaodesi 2026-04-02 13/650 2026-04-04 12:20 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çóµ÷¼Á +3 ũҵ¹¤³ÌÓëÐÅÏ¢¼ 2026-04-04 3/150 2026-04-04 12:19 by Éá¶øºóµÃ
[¿¼ÑÐ] 292·Ö£¬²ÄÁÏÓ뻯¹¤£¬ÉêÇëµ÷¼Á +21 ³ÌÇçÖ® 2026-04-01 25/1250 2026-04-04 11:01 by hmn_wj
[¿¼ÑÐ] 26µ÷¼Á 086003 +6 ʧ»îµÄϸ°û 2026-04-04 6/300 2026-04-04 09:50 by zhangdingwa
[¿¼ÑÐ] ÊÞÒ½µ÷¼Á +3 wh119216 2026-04-02 3/150 2026-04-03 19:34 by zrongyan
[¿¼ÑÐ] 324Çóµ÷¼Á +4 ÏëÉÏѧÇóµ÷ 2026-04-03 4/200 2026-04-03 14:41 by rongligao
[¿¼ÑÐ] 326·ÖÇóµ÷¼Á +3 ÓÚÊǺõÄØ 2026-04-01 5/250 2026-04-03 14:23 by ÓÚÊǺõÄØ
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª±±µçÁ¦´óѧ£¨±±¾©£©£¬²ÄÁÏ¿ÆÑ§Ó빤³Ìѧ˶265£¬Çóµ÷¼Á +9 yelck 2026-04-03 10/500 2026-04-03 13:20 by yelck
[¿¼ÑÐ] 298Çóµ÷¼Á +5 ÖÖÊ¥´Í 2026-03-28 5/250 2026-04-03 12:26 by xingguangj
[¿¼ÑÐ] 071000ÉúÎïѧµ÷¼Á +8 ÖªÕÑÂû 2026-04-02 8/400 2026-04-03 10:36 by macy2011
[¿¼ÑÐ] 295Çóµ÷¼Á +7 Ô¸ÂÃ;ÓÀԶ̹Ȼ 2026-04-02 7/350 2026-04-03 08:22 by fangshan711
[¿¼ÑÐ] 0856²ÄÁÏÓ뻯¹¤µ÷¼Á£¬339 +14 10213207 2026-03-31 14/700 2026-04-02 21:01 by 1104338198
[¿¼ÑÐ] 266Çóµ÷¼Á +4 ѧԱ97LZgn 2026-04-02 4/200 2026-04-02 13:03 by yulian1987
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +12 Ò»ÑùYWY 2026-04-01 12/600 2026-04-02 09:15 by olim
[¿¼ÑÐ] Ò»Ö¾Ô¸ÎäÀí²ÄÁϹ¤³Ì302µ÷¼Á»·»¯»ò»¯¹¤ +15 Doleres 2026-03-31 16/800 2026-04-01 09:49 by lfj11
[¿¼ÑÐ] Ò»Ö¾Ô¸Õã½­´óѧ¹¤¿Æ¶¯Á¦¹¤³Ì370,ÊýÒ»121,רҵ¿Î135£¬ÏÖÔÚÄÜÈ¥ÄÄÀï +3 080700µ÷¼Á 2026-03-30 4/200 2026-03-31 12:00 by KLMY666
[¿¼ÑÐ] 274Çóµ÷¼Á +6 xiao°®Í¬Ñ§ 2026-03-30 6/300 2026-03-31 10:04 by cal0306
[¿¼ÑÐ] 0703»¯Ñ§321·ÖÇóµ÷¼Á +10 Èýdd. 2026-03-30 11/550 2026-03-30 19:24 by markhwc
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û