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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la8034837
|2 doi
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|a pubmed24n0617.xml
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|a eng
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|a Mori, Takeshi
|e verfasserin
|4 aut
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|a Syndiotactic poly(N-n-propylacrylamide) shows highly cooperative phase transition
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|c 2009
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 27.02.2009
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|a Date Revised 31.12.2008
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Syndiotactic poly(N-n-propylacrylamide)s (PNNPAM) with various racemo (r) diad contents were synthesized, and their phase transition behaviors were studied by high-sensitivity differential scanning calorimetry and FT-IR spectroscopy. The cooperativity of the phase transition increased with the increase in the r diad content. Compared with the atactic PNNPAM, the number of cooperative units, which shows the monomeric units length undergoing cooperative phase transition, increased 2.5- to 4-fold in the syndiotactic polymers. From the results of FT-IR spectroscopy and quantum chemical calculations, it was determined that the high cooperativity of the syndiotactic polymers resulted from local formation of an ordered structure in a dehydrated state
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|a Journal Article
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|a Hirano, Tomohiro
|e verfasserin
|4 aut
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1 |
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|a Maruyama, Atsushi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Katayama, Yoshiki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Niidome, Takuro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bando, Yoichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ute, Koichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Takaku, Shinji
|e verfasserin
|4 aut
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| 700 |
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|a Maeda, Yasushi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 25(2009), 1 vom: 06. Jan., Seite 48-50
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:25
|g year:2009
|g number:1
|g day:06
|g month:01
|g pages:48-50
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| 856 |
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|u http://dx.doi.org/10.1021/la8034837
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