Znn3bq.jpeg
²é¿´: 926  |  »Ø¸´: 14
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

westwolf

ľ³æ (ÖøÃûдÊÖ)


[½»Á÷] ÄÉÃ×Á£×ӵķÖÉ¢

Ðí¶à½ðÊô´ß»¯¼ÁÊÇÒÔÄÉÃ×Á£×Ó·½Ê½´æÔÚ¡£¶øÇÒÄÉÃ×Á£×ÓÒ²ÊÇÖÆ±¸ÄÉÃ׸´ºÏ²ÄÁϵÈÖ÷Òª×é³É²¿·Ö¡£Êµ¼ÊÓ¦ÓÃÖеÄÒ»¸öÄѵãÊÇÄÉÃ×Á£×ӵķÖÉ¢¡£ÕâÀïÏò´ó¼ÒÍÆ¼öһƪÕâ·½ÃæµÄÐÂÎÄÏ×£¬Ï£Íû¶ÔÄúÓвο¼¼ÛÖµ¡£

Reports
General Strategies for Nanoparticle Dispersion
Science 24 March 2006:£¬ Vol. 311. no. 5768, pp. 1740 - 1743
DOI: 10.1126/science.1122225
Michael E. Mackay,* Anish Tuteja, Phillip M. Duxbury, Craig J. Hawker, Brooke Van Horn, Zhibin Guan, Guanghui Chen, R. S. Krishnan

Traditionally the dispersion of particles in polymeric materials has proven difficult and frequently results in phase separation and agglomeration. We show that thermodynamically stable dispersion of nanoparticles into a polymeric liquid is enhanced for systems where the radius of gyration of the linear polymer is greater than the radius of the nanoparticle. Dispersed nanoparticles swell the linear polymer chains, resulting in a polymer radius of gyration that grows with the nanoparticle volume fraction. It is proposed that this entropically unfavorable process is offset by an enthalpy gain due to an increase in molecular contacts at dispersed nanoparticle surfaces as compared with the surfaces of phase-separated nanoparticles. Even when the dispersed state is thermodynamically stable, it may be inaccessible unless the correct processing strategy is adopted, which is particularly important for the case of fullerene dispersion into linear polymers.


http://www.box.net/public/ar8bhl5thf
Èç¹ûÒªÇó×¢²á£¬¿ÉÒÔÓÃÑûÇë
http://www.box.net/signup/invitation/nanoquebec@gmail.com


[ Last edited by rabbit7708 on 2007-4-18 at 15:56 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹ØÉ̼ÒÍÆ¼ö: (ÎÒÒ²ÒªÔÚÕâÀïÍÆ¹ã)

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

afzou

Í­³æ (³õÈëÎÄ̳)

ÎÒÒ²ÒѾ­ÏÂÔØÁË£¬·Ç³£¸Ðл£®Ð»Ð»
6Â¥2006-05-22 16:35:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 15 ¸ö»Ø´ð

watercloud

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

¹úÄɿƼ¼½´

0.25

ºÃÏñÊÇÄÉÃ×Á£×ÓÔڸ߷Ö×Ó²ÄÁϵķÖÉ¢
¿ÆÆÕ×÷¼Ò£¬°Ù¼Ò½³Ðļƻ®´´×÷Õߣ¬Öªºõº£Ñμƻ®´´×÷Õߣ¬°Ù¶ÈÎÊÒ»ÎÊÐÐÒµ×ÊÉî´ðÖ÷£¬Ôú¸ù¿Õ¾»/вÄÁÏ/½ÚÄÜ»·±£¶þÊ®Ä꣬ÓÃÀä¾²¡¢×¨ÒµÊӽǸøÄã´øÀ´²»Ò»ÑùµÄ¿ÆÑ§ÈÏÖª
3Â¥2006-05-22 14:38:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

guwenxiu

½ð³æ (ÕýʽдÊÖ)

0.5

ÏÂÁË£¬·Ç³£¸Ðл£¡
8Â¥2006-05-29 22:01:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

rabbit7708

ÈÙÓþ°æÖ÷ (Ö°Òµ×÷¼Ò)

Ðijæ

1


¿´¿´à¶¡£²»´íµÄ¶«Î÷£¬Ñ§Ï°ÖУ¡
»¯Ñ§Ñ§¿Æ¡ª¡ª´ß»¯×¨°æ»¶Ó­Äú£¡£º£© http://emuch.net/bbs/forumdisplay.php?fid=190 ³£À´¿´¿´Ó´£¡£º£©
11Â¥2006-10-15 21:29:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼Á +4 ¿àÃüÈË¡£¡£¡£ 2026-04-18 4/200 2026-04-19 02:01 by ÑÌÓêÁ÷ÑÄ
[¿¼ÑÐ] 0854Çóµ÷¼Á +23 ÃÅ·ÃþÃþ 2026-04-15 27/1350 2026-04-19 01:59 by ÑÌÓêÁ÷ÑÄ
[¿¼ÑÐ] ²ÄÁÏÏà¹Ø×¨Òµ344Çóµ÷¼ÁË«·Ç¹¤¿ÆÑ§Ð£»ò¿ÎÌâ×é +25 hualkop 2026-04-12 27/1350 2026-04-19 01:58 by ÑÌÓêÁ÷ÑÄ
[¿¼ÑÐ] 291Çóµ÷¼Á +10 ¹ØÒä±±. 2026-04-14 10/500 2026-04-18 23:32 by ·²¡Çé
[¿¼ÑÐ] 320Çóµ÷¼Á +5 Éî½¼akm 2026-04-17 5/250 2026-04-18 19:52 by Íõ¬Bè±
[¿¼ÑÐ] 297£¬¹¤¿Æµ÷¼Á? +5 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-14 5/250 2026-04-18 15:17 by Equinoxhua
[¿¼ÑÐ] ¼±Ðèµ÷¼Á +9 ¾ø²»·ÅÆú22 2026-04-15 10/500 2026-04-18 08:09 by chixmc
[¿¼ÑÐ] Çóµ÷¼Á +9 СÄô°®Ñ§Ï° 2026-04-16 11/550 2026-04-17 22:34 by chixmc
[¿¼ÑÐ] 322Çóµ÷¼Á +6 tekuzu 2026-04-17 6/300 2026-04-17 13:48 by Espannnnnol
[¿¼ÑÐ] 297£¬¹¤¿Æµ÷¼Á?ºÓÄÏũҵ´óѧ±¾¿Æ +14 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-14 14/700 2026-04-16 14:41 by dingyanbo1
[¿¼ÑÐ] 279ѧ˶ʳƷרҵÇóµ÷¼ÁԺУ 20+7 ¹Â¶ÀµÄÀǰ®³ÔÑò 2026-04-12 29/1450 2026-04-16 09:00 by screening
[¿¼ÑÐ] 289 ·Ö105500ҩѧר˶Çóµ÷¼Á(ÕÒBÇøÑ§Ð£) +4 °×ÔÆ123456789 2026-04-13 4/200 2026-04-16 00:18 by ·ÛÇßÈô³¾
[¿¼ÑÐ] Çóµ÷¼ÁѧУ +14 ²»»á³ÔÈâ 2026-04-13 16/800 2026-04-15 21:59 by noqvsozv
[¿¼ÑÐ] ¸÷λÀÏʦºÃ£¬Çóµ÷¼Á£¬±¾¿Æ211£¬Ò»Ö¾Ô¸Ìì½ò´óѧÉúÎïÓëҽҩѧ˶£¬²îÁ½Ãû¼ȡ¡£ +11 ·ÁùÁùjjj 2026-04-13 11/550 2026-04-14 16:01 by zs92450
[¿¼ÑÐ] ¿¼Ñе÷¼Á +13 ³¤¹­°Á 2026-04-13 14/700 2026-04-14 14:44 by zs92450
[¿¼ÑÐ] 105500ҩѧÇóµ÷¼Á +4 x_skys 2026-04-12 4/200 2026-04-14 13:37 by rndfc
[¿¼ÑÐ] Çóµ÷¼Á +3 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 3/150 2026-04-14 01:00 by Íõ¬Bè±
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +11 ²»»á³ÔÈâ 2026-04-12 11/550 2026-04-13 21:59 by bljnqdcc
[¿¼ÑÐ] BÇø0809 £¬ÊýÒ»Ó¢Ò»£¬290 Çóµ÷¼Á +3 ãöΫ1111 2026-04-12 4/200 2026-04-13 20:35 by ѧԱJpLReM
[¿¼ÑÐ] ¡£ +10 Àî¶àÃ×lee. 2026-04-12 11/550 2026-04-12 22:58 by yuyin1233
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û