| ²é¿´: 1055 | »Ø¸´: 4 | ||
| ±¾Ìû²úÉú 1 ¸ö ·ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴 | ||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | ||
´ó±ÈÄ¿Óãͳæ (СÓÐÃûÆø)
|
[ÇóÖú]
Ó¢Ò뺺 »¯Ñ§·½Ãæ
|
|
|
The continued use of large quantities of organic solvents as liquid media for chemical reaction, extraction, and formulation is a major concern in today¡¯s chemical processing industry. The perceived deleterious effects of these materials on human health, safety, and the environment combined with their volatility and flammability has lead to increasing pressure for minimizing their use both from a public relations and a cost perspective. Concepts, such as Environmental Stewardship,have placed a renewed emphasis on careful solvent selection and a search for less harmful alternatives. In the past, the emphasis in industrial chemistry was placed on product yield and quality. Increasingly, solvent use during manufacture is viewed in terms of avoiding the costs associated with disposal,legal liabilities, and regulatory constraints. Recent regulatory controls have aggressively targeted the reduction of the volume of industrial pollutants, a major component of which comprise spent solvents unsuitable for recycling. Approaches to reduce the reliance on traditional solvents will be of tremendous importance in cleaning up industrial problems. Currently, treatment of solvent-laden wastes is a cost borne by industry, human health, and the environment. Although alternative approaches such as heterogeneous catalysis and aqueous reaction media exist, they may not represent generic solutions to these problems. The ideal opportunity for waste reduction occurs before any reagents are mixed, during process design. In this approach, basic chemistry must play an important role in formulating alternative manufacturing processes with minimized hazards and decreased waste generation. This shift in the manufacturing paradigm is the basis of ¡®Green Chemistry¡¯, rather than pollute and remediate. Green Chemistry also proposes optimized synthetic methodologies for high product yields and the generation of substances that offer little harm to the environment. In view of the heavy reliance on organic solvents in current manufacturing processes, the development of new technologies for pollution prevention can assist in the reduction of VOC usage and the associated volatility, environmental, and human health concerns that accompany exposure to organic solvents. Ionic liquids (ILs) are non-volatile, non-flammable and thermally stable solvents and as such as very promising replacements for the traditional volatile organic solvents. Their quite rapid emergence as alternative solvents has involved a rapidly growing number of examples of application but the understanding and study of their physical properties has lagged behind. It is very important that we accumulate a substantial body of physical data for these fascinating substances so that their true potential as solvents can be realised. Here the effects of the alkyl chain length of the cation and the identity of the anion on the key properties of hygroscopicity, density, viscosity, surface tension, melting point and thermal stability are studied. The anion identity is shown to be of foremost importance. [ Last edited by ´ó±ÈÄ¿Óã on 2013-6-24 at 05:52 ] |
» ²ÂÄãϲ»¶
299Çóµ÷¼Á
ÒѾÓÐ6È˻ظ´
286·ÖÈ˹¤ÖÇÄÜרҵÇëÇóµ÷¼ÁÔ¸Òâ¿ç¿¼£¡
ÒѾÓÐ5È˻ظ´
279Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
336Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
286Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ071000£¬Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
279·ÖÇóµ÷¼Á Ò»Ö¾Ô¸211
ÒѾÓÐ14È˻ظ´
332Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
0856²ÄÁÏר˶353Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
²ÄÁÏѧѧ˶080502 337Çóµ÷¼Á-Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ
ÒѾÓÐ5È˻ظ´

´ó±ÈÄ¿Óã
ͳæ (СÓÐÃûÆø)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 105.1
- Ìû×Ó: 187
- ÔÚÏß: 17.9Сʱ
- ³æºÅ: 2506115
- ×¢²á: 2013-06-13
- רҵ: Ó¦Óø߷Ö×Ó»¯Ñ§ÓëÎïÀí

3Â¥2013-07-04 19:42:33
iwolfman
Ìú³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 4
- Ó¦Öú: 3 (Ó×¶ùÔ°)
- ½ð±Ò: 919.8
- É¢½ð: 56
- ºì»¨: 4
- Ìû×Ó: 367
- ÔÚÏß: 191.8Сʱ
- ³æºÅ: 2337178
- ×¢²á: 2013-03-11
- רҵ: ÓлúºÏ³É
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
´ó±ÈÄ¿Óã(phu_grassman´ú·¢): ½ð±Ò+10, thanks 2013-08-24 08:32:43
´ó±ÈÄ¿Óã(phu_grassman´ú·¢): ½ð±Ò+10, thanks 2013-08-24 08:32:43
|
½üÆÚµÄ¹ÜÀí¿ØÖÆÔÚÃé×¼¼õÉÙ²úÉú¹¤Òµ·ÏÎï·½ÃæÏÂÁ˺ܴ󹦷ò£¬ÆäÖÐÒ»¸öÖ÷ÒªµÄ·½Ãæ¾Í°üÀ¨ÔÚÑ»·ÖеIJ» Êʵ±µÄ·ÏÈܼÁ¡£Äܹ»¼õÉÙ¶Ô´«Í³ÈܼÁÒÀÀµµÄ·½·¨£¬ÔÚÇåÀí¹¤ÒµÎÊÌâÖÐÄܹ»·¢»Ó¼«´óÖØÒªÐÔ¡£Ä¿Ç°£¬ÈܼÁ ¸ºÔØ·ÏÎïµÄ´¦Àí¹¤×÷£¬Êǹ¤Òµ¡¢ÈËÀཡ¿µºÍ»·¾³µÄÒ»¸ö³É±¾¸ºµ£¡£¾¡¹Ü¿ÉÌæ´ú·½·¨£¬ÀýÈç¶àÏà´ß»¯ºÍÈÜ Òº·´Ó¦Ã½½é´æÔÚ£¬µ«ÊÇËüÃDz»ÄÜ´ú±í¶ÔÕâЩÎÊÌâ½øÐд¦ÀíµÄÒ»°ã·½·¨¡£ ÔÚ¹ý³ÌÉè¼ÆÖУ¬¼õÉÙ·ÏÎï×îÀíÏëµÄ»ú»áÓ¦¸ÃÔÚÈܼÁ±»»ìºÏ֮ǰ¡£ÔÚ´Ë;¾¶ÖУ¬»ù±¾»¯Ñ§±ØÐëÄܹ»ÔÚÐÎ³É ¿ÉÌæ´úÉú²ú¹ý³ÌÖз¢»ÓÖØÒª×÷Óã¬Õâ¸öÉú²ú¹ý³ÌÐè¾ßÓÐ×îСµÄΣº¦ÎïºÍ¼õСµÄ·ÏÎï²úÉú¡£ÕâÑù£¬Õâ¸öÉú ²úģʽ×ܵÄת±ä¾ÍÊÇÂÌÉ«»¯Ñ§µÄ»ù±¾£¬¶ø²»ÊÇÎÛȾµÄºÍÐèÒªÖÎÀíµÄ¡£ÂÌÉ«»¯Ñ§Í¬ÑùÌá³ö¶Ô¸ß²úÂÊÑ¡ÔñÓÅ »¯µÄºÏ³É·½·¨£¬²¢ÇÒ²úÉúµÄÎïÖʶԻ·¾³ÎÞº¦¡£´Óµ±½ñÉú²ú¹ý³ÌÖжÔÓлúÈܼÁµÄÑÏÖØÒÀÀµ½Ç¶È¿´£¬Îª×èÖ¹ ÎÛȾ£¬Ð¼¼ÊõµÄ·¢Õ¹¿ÉÒÔ°ïÖú¼õÉÙÓлú»Ó·¢ÎVOA£©µÄʹÓã¬ÒÔ¼°°éËæ×ű©Â¶ÔÚÓлúÈܼÁÖÐÏà¹ØµÄ»Ó ·¢ÐÔ¡¢»·¾³ºÍÈËÀཡ¿µÎÊÌâ¡£ Àý×ÓÈÜÒº£¨ILs£©ÊǷǻӷ¢£¬²»Ò×ȼ¶øÇÒÈÈÎȶ¨ÐÔµÄÈܼÁ£¬Í¬Ê±ÓÖÊÇ×÷Ϊ¶Ô´«Í³»Ó·¢ÓлúÈܼÁµÄºÜÓÐǰ ¾°µÄºÜºÃµÄÌæ´úÆ·¡£×÷ÎªÌæ´úÈܼÁ£¬ËûÃǵÄѸËÙ³öÏÖÔÚÐí¶à²»¶ÏÔö³¤µÄÓ¦ÓÃÀý×ÓÖУ¬µ«ÊǶÔËûÃÇÎÝÀïÌØ ÐÔµÄÀí½âºÍÑо¿»¹Ïà¶ÔǷȱ¡£ËùÒÔ£¬»ýÀÛ´óÁ¿ÊµÖÊÐÔµÄÎïÀíÊý¾Ý£¬¶ÔÓÚÕâЩ¼«ºÃµÄÎïÖÊʵÏÖËüÃÇÈܼÁµÄ DZÁ¦ÊǷdz£ÖØÒªµÄ¡£ÕâÀÎÒÃÇÑо¿ÁËÑôÀë×ÓÍé»ùÁ´³¤¶ÈºÍÒõÀë×ÓµÄÖÖÀ࣬¶ÔÎüË®ÐÔ¡¢Ãܶȡ¢Õ³¶È¡¢±íÃæÕÅÁ¦¡¢ÈÚ»¯µãºÍÈÈÎȶ¨ÐÔµÈÖ÷ÒªÌØÐÔËù²úÉúµÄЧӦ¡£ÒõÀë×ÓÖÖÀàÏÔʾ³ö¾ßÓÐ×îÖØÒªµÄ×÷ÓᣠÊÇÒ»¸öabstract |
2Â¥2013-06-24 11:45:13
iwolfman
Ìú³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 4
- Ó¦Öú: 3 (Ó×¶ùÔ°)
- ½ð±Ò: 919.8
- É¢½ð: 56
- ºì»¨: 4
- Ìû×Ó: 367
- ÔÚÏß: 191.8Сʱ
- ³æºÅ: 2337178
- ×¢²á: 2013-03-11
- רҵ: ÓлúºÏ³É
4Â¥2013-07-05 15:35:50
°åµÊ·Ëͽ
гæ (³õÈëÎÄ̳)
- ·ÒëEPI: 63
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 15
- ºì»¨: 84
- Ìû×Ó: 4
- ÔÚÏß: 936.3Сʱ
- ³æºÅ: 1035135
- ×¢²á: 2010-06-03
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
´ó±ÈÄ¿Óã(phu_grassman´ú·¢): ½ð±Ò+20, ·ÒëEPI+1, good job. 2013-08-24 08:32:04
´ó±ÈÄ¿Óã(phu_grassman´ú·¢): ½ð±Ò+20, ·ÒëEPI+1, good job. 2013-08-24 08:32:04
|
ÓÃÓÚ»¯Ñ§·´Ó¦¡¢ÌáÈ¡¡¢Áй«Ê½µÄÒºÌå½éÖʵĴóÁ¿ÓлúÈܼÁµÄ³ÖÐøÊ¹ÓÃÊǵ±½ñ»¯Ñ§¹ý³Ì¹¤ÒµÖ÷Òª¿¼Âǵķ½Ãæ¡£¸ÐÖªµ½¹ØÓÚÈËÀཡ¿µ¡¢°²È«¡¢»·¾³²¢½áºÏËüÃǵĻӷ¢ÐԺͿÉȼÐÔ£¬ÕâЩÎïÖʵÄÓж¾Óк¦Ó°ÏìÒѾµ¼ÖÂËüÃÇÊܵ½µÄ¹«¹²¹ØÏµ×îС»¯ºÍÏû·Ñǰ¾°Ê¹ÓÃ×îС»¯µÄѹÁ¦Ôö¼Ó¡£ÀýÈç»·¾³¹ÜÀí¹¤×÷µÄ¹ÛÄîÒѾȷ¶¨Á˶Խ÷É÷Ñ¡ÔñÈܼÁµÄÖØÐÂÇ¿µ÷ºÍ¸üÉÙÓк¦ÐÔÑ¡ÔñµÄÑо¿¡£ÔÚ¹ýÈ¥£¬¹¤Òµ»¯Ñ§Ç¿µ÷²úÆ·µÄ²úÁ¿ºÍÖÊÁ¿¡£ÖÆÔìÆÚ¼äµÄÈܼÁʹÓÃÔÚ¹ØÓÚ´¦Àí¡¢·¨ÂÉ¡¢ÔðÈΡ¢¹æÔòÏÞÖÆ·½Ãæ±ÜÃ⻨·ÑµÄ¹Ø×¢Ôö¼ÓÁË¡£ ×î½üµÄ¹æÔò¿ØÖÆÒѾ»ý¼«µØÃé×¼¼õÉÙ¹¤ÒµÎÛȾÁ¿£¬°üÀ¨Ö÷Òª×é³É²¿·ÖµÄÈܼÁµÄ²»Êʵ±»ØÊÕ¡£¼õÉÙ¶Ô´«Í³ÈܼÁµÄÒÀÀµµÄ;¾¶»áÔÚÇåÀí¹¤ÒµÎÊÌâʱÓм«´óµÄÖØÒªÐÔ¡£Ä¿Ç°£¬ÈܼÁ¸ºÔØ·ÏÆúÎïµÄ´¦Àí¶Ô¹¤Òµ¡¢ÈËÀཡ¿µºÍ»·¾³ÊÇÒ»¸öÐèÒª»¨·ÑµÄ¸ººÉ¡£ËäÈ»ÓÐÀýÈç¶àÏà´ß»¯¡¢Ë®·´Ó¦½éÖÊ´æÔڵĿÉÑ¡·½·¨£¬ËüÃÇÒ²Ðí²»ÄÜ´ú±íÕâЩÎÊÌâµÄͨÓýâ¾ö·½·¨¡£ ¼õÉÙ·ÏÆúÎïµÄÀíÏë»ú»á·¢ÉúÔÚһЩÊÔ¼Á»ìºÏǰÒÔ¼°¹ý³ÌÉè¼ÆÊ±¡£Í¨¹ýÕâ¸ö·½·¨£¬»ù´¡»¯Ñ§±ØÈ»ÔÚ¹«Ê½»¯Ñ¡ÔñÖÆÔì¹ý³ÌµÄΣÏÕ×îС»¯Óë¼õÉÙ·ÏÆúÎï²úÉúÖаçÑÝÖØÒª½ÇÉ«¡£ÔÚÖÆÔì·¶ÀýÖеÄÕâÖÖת±äÊÇ¡°ÂÌÉ«»¯Ñ§¡±µÄ»ù´¡£¬¶ø²»ÊÇÎÛȾºÍ²¹¾È¡£ÂÌÉ«»¯Ñ§Ò²½¨ÒéÌá¸ß²úÁ¿ºÍ²ÉÓöԻ·¾³ÓÐÉÙÁ¿Î£º¦µÄÎïÖʲúÉúµÄ×î¼Ñ»¯ºÏ·½·¨¡£ÓÉÄ¿Ç°ÖÆÔì¹ý³ÌÖдóÁ¿ÒÀÀµÓлúÈܼÁ¿´À´£¬·ÀÖ¹ÎÛȾµÄз½·¨µÄ·¢Õ¹¿ÉÒÔÓÃÓÚ¼õÉÙ»Ó·¢ÐÔÓлú»¯ºÏÎïʹÓÃÁ¿ÒÔ¼°°éËæÔÚÓлúÈܼÁÖб©Â¶µÄ»Ó·¢ÐÔ¡¢»·¾³¡¢ÈËÀཡ¿µ¡£ Àë×ÓÒºÌåÊÇÎÞ»Ó·¢ÐÔ¡¢ÎÞ¿ÉȼÐÔÇÒÈÈÎȶ¨µÄÈܼÁ£¬Í¬Ê±Ò²ÄÜ×÷Ϊ·Ç³£ÓÐǰ¾°µÄ´«Í³·Ç»Ó·¢ÐÔÓлúÈܼÁµÄÈ¡´úÎï¡£ËüÃÇ×÷ÎªÌæ´úÈܼÁÊ®·Ö¿ìËٵijöÏÖ£¬ÒÑ¾Éæ¼°ÁË´óÁ¿¿ìËÙÔö³¤µÄÉêÇë°¸Àý£¬µ«ÊǶÔËüÃÇÎïÀíÐÔÖʵÄÀí½âºÍÑо¿È´ÒѾÖͺóÁË¡£ÎÒÃÇÊÕ¼¯ÁËÕâЩÎüÒýÈ˵ÄÎïÖʵĴóÁ¿ÎïÀíÊý¾Ý£¬ÕâÊǷdz£ÖØÒªµÄ£¬Òò´ËËüÃÇ×÷ΪÈܼÁµÄÕæÕýDZÁ¦Äܹ»µÃÒÔʵÏÖ¡£ÒѾÑо¿ÁËÍé»ùÑôÀë×ÓµÄÍé»ùÁ´³¤¶ÈµÄÓ°ÏìºÍ¹ØÓÚÎüË®ÐÔ¡¢Ãܶȡ¢Õ³¶È¡¢±íÃæÕÅÁ¦¡¢È۵㡢ÈÈÎȶ¨ÐÔ£¨ÕâЩ£©¹Ø¼üÐÔÖʵÄÒõÀë×ÓÌØÐÔ¡£ |
5Â¥2013-08-24 06:00:48













»Ø¸´´ËÂ¥
10