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reasonspare
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.894
- ½ð±Ò: 2137.1
- ºì»¨: 11
- Ìû×Ó: 1909
- ÔÚÏß: 72.5Сʱ
- ³æºÅ: 180928
- ×¢²á: 2006-02-10
- רҵ: All in one
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ÓÃÓÚÖÊ×Ó½»»»Ä¤µÄ»Ç»¯¾Ûõ£Ñǰ·µÄºÏ³ÉÓëÐÔÄÜÑо¿ ÍÆ¼ö ÏÂÔØÔĶÁCAJ¸ñʽȫÎÄ ÏÂÔØÔĶÁPDF¸ñʽȫÎÄ ¡¾Ó¢ÎÄÆªÃû¡¿ Synthesis and Properties of Sulfonated Polyimide for Proton Exchange Membrane ¡¾×÷ÕßÖÐÎÄÃû¡¿ ÍõÀ×; ÃÏÔ¾ÖÐ; ÍõË©½ô; Öì¹âÃ÷; ¡¾×÷ÕßÓ¢ÎÄÃû¡¿ WANG Lei1; MENG Yue-Zhong2; WANG Shuan-Jin2; ZHU Guang-Ming1£¨1. Shenzhen Key Laboratory of Special Functional Materials; College of Material Science; Shenzhen University; Shenzhen 518060; China; 2. Institute of Energy & Environment Materials; School of Physics & Engineering; Sun Yat-Sen University; Guangzhou 510275; China£©; ¡¾×÷Õßµ¥Î»¡¿ ÉîÛÚÊÐÌØÖÖ¹¦ÄܲÄÁÏÖØµãʵÑéÊÒÉîÛÚ´óѧ²ÄÁÏѧԺ; ÖÐɽ´óѧÀí¹¤Ñ§ÔºÄÜÔ´Óë»·¾³²ÄÁÏÑо¿Ëù; ÉîÛÚÊÐÌØÖÖ¹¦ÄܲÄÁÏÖØµãʵÑéÊÒÉîÛÚ´óѧ²ÄÁÏѧԺ ÉîÛÚ; ¡¾ÎÄÏ׳ö´¦¡¿ ¸ßµÈѧУ»¯Ñ§Ñ§±¨, Chemical Journal of Chinese Universities, ±à¼²¿ÓÊÏä 2007Äê 07ÆÚ ÆÚ¿¯ÈÙÓþ£ºÖÐÎĺËÐÄÆÚ¿¯ÒªÄ¿×ÜÀÀ ASPTÀ´Ô´¿¯ ÖйúÆÚ¿¯·½Õó CJFDÊÕ¼¿¯ ¡¾¹Ø¼ü´Ê¡¿ »Ç»¯¾Ûõ£Ñǰ·; ÖÊ×Ó½»»»Ä¤; Ë®½âÎȶ¨ÐÔ; ¡¾Ó¢ÎĹؼü´Ê¡¿ Sulfonated polyimide; Proton exchange membrane; Hydrolytic stability; ¡¾Ó¢ÎÄÕªÒª¡¿ A novel sulfonated polyimide containing triphenyl methane as the polymer electrolytes for fuel cell appliaction was successfully synthesized.The sulfonic acid function was only attached at the para positions on the pendant phenyl rings due to the novel sulfonated diamine structures designed.The sulfonated polymers are very soluble in common organic solvents,such as dimethyl sulfoxide,N,N'-dimethylacetamide,and can be readily cast into tough and smooth films from solutions.The membranes show excellent hydrol... ¡¾»ù½ð¡¿ ¹ã¶«Ê¡ÔÁ¸Û¹Ø¼üÁìÓòÖØµãÍ»ÆÆÐÔÖØ´óÕбêÏîÄ¿(Åú×¼ºÅ:2004A11004004)×ÊÖú |

6Â¥2007-09-22 09:43:35
reasonspare
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.894
- ½ð±Ò: 2137.1
- ºì»¨: 11
- Ìû×Ó: 1909
- ÔÚÏß: 72.5Сʱ
- ³æºÅ: 180928
- ×¢²á: 2006-02-10
- רҵ: All in one

2Â¥2007-09-22 09:40:32
reasonspare
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.894
- ½ð±Ò: 2137.1
- ºì»¨: 11
- Ìû×Ó: 1909
- ÔÚÏß: 72.5Сʱ
- ³æºÅ: 180928
- ×¢²á: 2006-02-10
- רҵ: All in one
|
¾Ûõ£Ñǰ·/¶þÑõ»¯¹èÔÓ»¯Ä¤µÄÖÆ±¸Óë½éµçÐÔÄܵÄÑо¿ ÍÆ¼ö ÏÂÔØÔĶÁCAJ¸ñʽȫÎÄ ÏÂÔØÔĶÁPDF¸ñʽȫÎÄ ¡¾Ó¢ÎÄÆªÃû¡¿ Preparation and Study on the Dielectric Properties of Polyimide/silica Hybrid Films ¡¾×÷ÕßÖÐÎÄÃû¡¿ ÁõÎÀ¶«; Ö챦¿â; ¡¾×÷ÕßÓ¢ÎÄÃû¡¿ LIU Wei-dong1; 2; ZHU Bao-ku2£¨1¡¢College of Chemistry and Life Science; Zhejiang Normal University; Jinhua 321004; China; 2¡¢Institute of Polymer Science; Zhejiang University; Hangzhou 310027; China£©; ¡¾×÷Õßµ¥Î»¡¿ Õã½Ê¦·¶´óѧ»¯Ñ§ÓëÉúÃü¿ÆÑ§Ñ§Ôº; Õã½´óѧ¸ß·Ö×Ó¿ÆÑ§Ñо¿Ëù Õã½½ð»ª321004Õã½´óѧ¸ß·Ö×Ó¿ÆÑ§Ñо¿Ëù; Õ㽺¼ÖÝ; ¡¾ÎÄÏ׳ö´¦¡¿ Õã½»¯¹¤, Zhejiang Chemical Industry, ±à¼²¿ÓÊÏä 2007Äê 07ÆÚ ÆÚ¿¯ÈÙÓþ£ºASPTÀ´Ô´¿¯ CJFDÊÕ¼¿¯ ¡¾¹Ø¼ü´Ê¡¿ ¾Ûõ£Ñǰ·; ¶þÑõ»¯¹è; ÔÓ»¯Ä¤; ½éµçÄ£ÐÍ; ½éµçÐÔÄÜ; ¡¾Ó¢ÎĹؼü´Ê¡¿ polyimide; hybrid film; dielectric properties; dielectric constant prediction; silica; ¡¾ÕªÒª¡¿ ²ÉÓÃÈܽº-Äý½º·¨ÖƱ¸ÁËBTDA-ODA¾Ûõ£Ñǰ·/SiO2ÔÓ»¯Ä¤,ÀûÓúìÍâ·Ö¹â¹â¶È¼Æ(FTIR)¡¢ÈÈÖØ·ÖÎöÒÇ(TGA)ºÍ͸Éäµç¾µ(TEM)Ñо¿ÁËÔÓ»¯Ä¤µÄ΢¹Û½á¹¹ºÍÈÈÐÔÄÜ,²¢¶ÔÔÓ»¯Ä¤µÄ½éµç³£Êý(e)ºÍ½éµçËðºÄ(tand)ËæSiO2Á£×Óº¬Á¿ºÍµç³¡ÆµÂʵı仯½øÐÐÁË·ÖÎöºÍÌÖÂÛ¡£½á¹û±íÃ÷:ÔÓ»¯Ä¤µÄ½éµç³£ÊýºÍ½éµçËðºÄËæSiO2Á£×Óº¬Á¿µÄÔö¼Ó¶øÔö´ó,Ëæµç³¡ÆµÂʵÄÉý¸ß¶øÖð½¥½µµÍ,Óÿ¼Âǵ½Á£×ÓµÄÐÎ×´ÒòËØºÍÁ½Ïà¼äÏ໥×÷ÓõÄEMTÄ£ÐÍ¿ÉÒÔÔ¤²â¾Ûõ£Ñǰ·/SiO2ÔÓ»¯Ä¤µÄ½éµç³£Êý¡£ ¡¾Ó¢ÎÄÕªÒª¡¿ PI/SiO2 hybrid films were prepared with an improved sol-gel process,Fourier transform infrared spectroscopy(FT-IR),transmission electron microscope(TEM) and thermal gravimetric analysis(TGA) were used to characterize the structure and properties of the obtained films.Changes of dielectric constant(e) and dielectric loss(tand) with silica content and the frequency of applied alternating field have been discussed.The results showed that the dielectric constant(e) and the dielectric loss(tand) of the composite... ¡¾»ù½ð¡¿ ¹ú¼Ò×ÔÈ»¿ÆÑ§»ù½ð(50103010) ¡¾DOI¡¿ CNKI:SUN:ZJHG.0.2007-07-007 |

3Â¥2007-09-22 09:41:54
reasonspare
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ¹ó±ö: 0.894
- ½ð±Ò: 2137.1
- ºì»¨: 11
- Ìû×Ó: 1909
- ÔÚÏß: 72.5Сʱ
- ³æºÅ: 180928
- ×¢²á: 2006-02-10
- רҵ: All in one
|
¾Ûõ£Ñǰ·/¶þÑõ»¯¹èÔÓ»¯Ä¤ºÍ¸´ºÏĤµÄÖÆ±¸Óë½á¹¹Ñо¿ ÍÆ¼ö ÏÂÔØÔĶÁCAJ¸ñʽȫÎÄ ÏÂÔØÔĶÁPDF¸ñʽȫÎÄ ¡¾Ó¢ÎÄÆªÃû¡¿ PREPARATION AND STUDY ON STRUCTURE OF THE POLYIMIDE/SILICA HYBRID AND NANOCOMPOSITE FILMS ¡¾×÷ÕßÖÐÎÄÃû¡¿ ÁõÎÀ¶«; Ö챦¿â; ¡¾×÷ÕßÓ¢ÎÄÃû¡¿ Liu Weidong 1£©; 2£© Zhu Baoku2£©£¨ 1£©Department of Chemistry; Zhejiang Normal University; 321004; Jinhua; Zhejiang; China; 2£©Institute of Polymer Science; Zhejiang University; 310027; Hangzhou; China £©; ¡¾×÷Õßµ¥Î»¡¿ Õã½Ê¦·¶´óѧ»¯Ñ§ÓëÉúÃü¿ÆÑ§Ñ§Ôº; Õã½´óѧ¸ß·Ö×Ó¿ÆÑ§Ñо¿Ëù; Õã½½ð»ª; 310027; ¡¾ÎÄÏ׳ö´¦¡¿ ɽ¶«Ê¦·¶´óѧѧ±¨(×ÔÈ»¿ÆÑ§°æ), Journal of Shandong Normal University(Natural Science), ±à¼²¿ÓÊÏä 2007Äê 03ÆÚ ÆÚ¿¯ÈÙÓþ£ºASPTÀ´Ô´¿¯ ÖйúÆÚ¿¯·½Õó CJFDÊÕ¼¿¯ ¡¾¹Ø¼ü´Ê¡¿ ¾Ûõ£Ñǰ·; ¶þÑõ»¯¹è; ÔÓ»¯Ä¤; ¸´ºÏĤ; ¡¾Ó¢ÎĹؼü´Ê¡¿ polyimide; hybrid film; composite film; silica; ¡¾ÕªÒª¡¿ ²ÉÓÃÈܽº-Äý½º·¨ºÍ¶þÑõ»¯¹èÁ£×Ó²ôÔÓ¹²»ì·¨·Ö±ðÖÆ±¸Á˾Ûõ£Ñǰ·/SiO2ÔÓ»¯Ä¤ºÍÄÉÃ׸´ºÏĤ.²ÉÓúìÍâ·Ö¹â¹â¶È¼Æ(FTIR)¡¢ÈÈÖØ·ÖÎöÒÇ(TGA)ºÍ͸Éäµç¾µ(TEM)±íÕ÷ÁËËùÖÆ±¸Ä¤µÄ½á¹¹Î¢¹ÛÐÎ̬ºÍÈÈÐÔÄܲ¢½øÐзÖÎö¶Ô±È,½á¹û±íÃ÷ÔÚÔÓ»¯Ä¤ÖÐSiO2ÔÚ¾Ûõ£Ñǰ·»ùÌåÖпÉÒÔÐγɷÖ×Ó¼¶·ÖÉ¢,¸´ºÏĤ±íÏÖ³ö½ÏÇ¿µÄÎüʪÐÔʹÆäÈÈ·Ö½âζȽϵÍ.Ñо¿ÈÏΪ,²ÉÓÃÈܽº-Äý½º·¨ÖƱ¸¾Ûõ£Ñǰ·/SiO2½éµç²ÄÁϸüΪºÏÀí. ¡¾Ó¢ÎÄÕªÒª¡¿ PI/SiO2 hybrid films were prepared with an improved sol-gel process, and PI/SiO2 nanocomposite films were successfully prepared by blending the modified SiO2 particles into PAA solution respectively. Fourier transform infrared spectroscopy (FT-IR), transmission electron microscope (TEM) and thermal gravimetric analysis (TGA) were used to characterize the structure and properties of the obtained films. The results confirmed the formation of Si¡ªO¡ªSi network and the conversion from PAA into polyimide in both h... ¡¾»ù½ð¡¿ ¹ú¼Ò×ÔÈ»¿ÆÑ§»ù½ð×ÊÖúÏîÄ¿(50103010) ¡¾DOI¡¿ CNKI:SUN:SDZK.0.2007-03-023 |

4Â¥2007-09-22 09:42:32













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