|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
SAXS研究四臂聚氧化乙烯片晶的增厚
DOI: 10.3724/SP.J.1105.2014.13307, PP. 415-422
Keywords: 聚氧化乙烯,小角X光散射,片晶,熔融-重结晶,奥斯瓦尔德熟化
Abstract:
使用小角X光散射（SAXS）方法研究了每臂分子量为5000的四臂聚氧化乙烯在从熔点以上的温度淬火到室温后，在室温到熔点前的温度区域里片晶的增厚过程.采用一维相关函数分析方法分析了SAXS数据，获得了样品的长周期、线性结晶度、结晶层和无定形层厚度随温度的变化.按照这些参数在升温过程中的演变规律，确定了3个特征区域.Ⅰ区约在26~45℃内，存在着3种不同厚度的片晶，最厚的片晶层厚度为9.3nm，线性结晶度、长周期、结晶层和无定形层厚度等参数基本不变，称为不变区.Ⅱ区约在45~52℃之间，这些参数都发生变化，SAXS的主峰分化为两个主要的峰，长周期、结晶层和无定形层厚度开始增加，但是，线性结晶度升高后又降低，称为转变区.Ⅲ区约在52~60℃之间，体系中只有单一厚度的片晶，其厚度不断增厚，到60℃结晶层厚度达15.8nm，称为增厚区.从分子运动和片晶亚稳定本质分析，可以解释实验上观察到的3个区域发生变化的本质在不变区里，主要的分子运动几乎被冻结，不可能发生可检测到的片晶结构变化.在转变区里，分子运动开始起作用，未结晶的分子开始结晶.同时，薄片晶会熔融，尔后又重新结晶.在增厚区里，线性结晶度和结晶层厚度增加，也意味着熔融-重结晶过程还在继续，直至达到这个样品可能形成的最厚片晶的熔点.实验观察到的熔融-重结晶过程的本质是聚合物片晶的亚稳态特性，稳定性低的薄片晶向稳定性高的厚片晶转变，即一个典型的奥斯瓦尔德熟化（Ostwaldripening）.
| [1] | 9 Cheng SZD, Phase Transitions in Polymers:The role of Metastable States.Berlin:Elsevier Science, 2008
|
| [2] | 10 O'Leary K, Geil P H.J Macromol Sci-Phys, 1967, B1:147~160
|
| [3] | 11 Mandelkern L, Sharma R K, Jackson J F.Macromolecules, 1969, 2:644~656
|
| [4] | 12 Fischer E W.Pure Appl Chem, 1971, 26:385~422
|
| [5] | 13 Ichida T, Tsuji M, Murakami S, Kawaguchi A, Katayama K.Colloid & Polym Sci, 1985, 263:293~300
|
| [6] | 14 Cho M H, Kyu T, Lin J S, Saijo K, Hashimoto T.Polymer, 1992, 33:4152~4157
|
| [7] | 15 Matsuda H, Aoike T, Uehara H, Yamanobe T.Komoto T.Polymer, 2001, 42:5013~5021
|
| [8] | 16 Zhai X M, Wang W, Ma Z P, Wen X J, Yuan F, Tang X F, He B L.Macromolecules, 2005, 38:1717~1722
|
| [9] | 17 Tang X F, Wen X J, Zhai X M, Xia N, Wang W.Macromolecules, 2007, 40:4386~4388
|
| [10] | 18 Xia Nan(夏楠), Tang Xiongfeng(唐雄峰), Wen Xiaojing(温笑菁), Zhang Guoliang(张国梁), Zhai Xuemei(翟雪梅), Wang Wei(王维).Acta Polymerica Sinica(高分子学报), 2011, (9):1040~1052
|
| [11] | 19 Ikeda Y, Nagasaki Y.Adv Polym Sci, 2012, 247:115~140
|
| [12] | 20 Ohya Y, Takahashi A, Nagahama K.Adv Polym Sci, 2012, 247:65~114
|
| [13] | 21 Stephan A M.Eur Polym J, 2006, 42:21~42
|
| [14] | 22 Kovacs A J, Gonthier A, Straupe C.J Polym Sci Polym Symp, 1975, 50:283~325
|
| [15] | 23 Kovacs A J, Straupe C, Gonthier A.J Polym Sci Polym Symp, 1977, 59:31~54
|
| [16] | 24 Kovacs A J, Straupe C.J Cryst Growth, 1980, 48:210~226
|
| [17] | 25 Hoffman J D.Macromolecules, 1986, 19:1124~128
|
| [18] | 26 Arlie P, Spegt P A, Skoulios A.Makomol Chem, 1966, 99:160~174
|
| [19] | 27 Arlie P, Spegt P A, Skoulios A.Makomol Chem, 1967, 104:212~229
|
| [20] | 28 Mandelkern L, Sharma R K, Jackson J F.Macromolecules, 1969, 2:644~656
|
| [21] | 29 Spegt P.Makromol Chem, 1970, 139:139~152
|
| [22] | 30 Dreyfuss P, Keller A J.J Macromol Sci-Phys, 1970, B4:811~836
|
| [23] | 31 Pope D P, Keller A J.J Polym Sci:Polym Phys Ed, 1976, 14:821~831
|
| [24] | 32 Takhashi Y, Tadokoro H.Macromolecules 1973, 6:672~675
|
| [25] | 37 Zhu D S, Liu Y X, Shi A C, Chen E Q.Polymer, 2006, 47:5239~5242
|
| [26] | 38 Liu Y X, Li J F, Zhu D S, Chen E Q, Zhang H D.Macromolecules, 2009, 42:2886~2890
|
| [27] | 39 Zhai X M, Wang W, Zhang G L, He B L.Macromolecules, 2006, 39:324~329
|
| [28] | 40 Zhai X M, Zhang G L, Ma Z P, Tang X F, Wang W.Macromol Chem Phys, 2007, 208:651~656
|
| [29] | 41 Ma Z P, Zhang G L, Zhai X M, Jin L X, Tang X F, Yang M, Zheng P, Wang W.Polymer, 2008, 49:1629~1634
|
| [30] | 42 Zhang G L, Jin L X, Ma Z P, Zhai X M, Yang M, Zheng P, Wang W, Wegner G.J Chem Phys, 2008, 129:224708
|
| [31] | 43 Jin L X, Zhang G L, Zhai X M, Ma Z P, Zheng P, Wang W.Polymer, 2009, 50:6157~6157
|
| [32] | 44 Zhang G L, Jin L X, Zheng P, Shi A C, Wang W.Polymer, 2010, 51:554~562
|
| [33] | 45 Zhang G L, Cao Y, Jin L X, Zheng P, van Horn R M, Lotz B, Cheng S Z D, Wang W.Polymer, 2011, 52:1133~1140
|
| [34] | 46 Zhang G L, Zhai X M, Ma Z P, Jin L X, Zheng P, Wang W, Cheng S Z D, Lotz B.ACS Macro Lett, 2012, 1:217~221
|
| [35] | 47 Zhang G L, Jin L X, Zheng P, Wang W, Wen X J.Chinese J Polym Sci, 2013, 31(5):798~808
|
| [36] | 48 Zhang Guoliang(张国梁), Wen Xiaojing(温笑菁), Zhai Xuemei(翟雪梅), Wang Wei(王维).Acta Polymerica Sinica(高分子学报), 2013, (3):398~405
|
| [37] | 49 Chen E Q, Lee S W, Zhang A, Moon B S, Harris F W, Cheng S Z D, Hsiao B S, Yeh F, Merrewell E V, Grubb D T.Macromolecules 1999, 32:4784~493
|
| [38] | 50 Strobl G R, Schneider M.J Polym Sci Part B Polym Phys B, 1980, 18:1343~1359
|
| [39] | 51 Stribeck N, X-ray Scattering of Soft Matters.Berlin:Springer, 2007.1457, 208:651~656
|
| [40] | 41 Ma Z P, Zhang G L, Zhai X M, Jin L X, Tang X F, Yang M, Zheng P, Wang W.Polymer, 2008, 49:1629~1634
|
| [41] | 42 Zhang G L, Jin L X, Ma Z P, Zhai X M, Yang M, Zheng P, Wang W, Wegner G.J Chem Phys, 2008, 129:224708
|
| [42] | 43 Jin L X, Zhang G L, Zhai X M, Ma Z P, Zheng P, Wang W.Polymer, 2009, 50, 6157~6157
|
| [43] | 44 Zhang G L, Jin L X, Zheng P, Shi A C, Wang W.Polymer, 2010, 51:554~562
|
| [44] | 45 Zhang G L, Cao Y, Jin L X, Zheng P, van Horn R M, Lotz B, Cheng S Z D, Wang W.Polymer, 2011, 52:1133~1140
|
| [45] | 46 Zhang G L, Zhai X M, Ma Z P, Jin L X, Zheng P, Wang W, Cheng S Z D, Lotz B.ACS Macro Lett, 2012, 1:217~221
|
| [46] | 47 Zhang G L, Jin L X, Zheng P, Wang W, Wen X J.Chinese J Polym Sci, 2013, 31:798~808
|
| [47] | 48 Zhang Guoliang(张国梁), Wen Xiaojing(温笑菁), Zhai Xuemei(翟雪梅), Wang Wei(王维).Acta Polymerica Sinica(高分子学报), 2013, (3):398~405
|
| [48] | 49 Chen E Q, Lee S W, Zhang A, Moon B S, Harris F W, Cheng S Z D, Hsiao B S, Yeh F, Merrewell E V, Grubb D T.Macromolecules 1999, 32:4784~493
|
| [49] | 50 Strobl G R, Schneider M.J Polym Sci Part B Polym Phys B, 1980, 18:1343~1359
|
| [50] | 51 Stribeck N, X-ray Scattering of Soft Matters.Berlin:Springer, 2007 ？
|
| [51] | 1 Ostwald W Z.Phys Chem 1897, 22:289~330
|
| [52] | 2 Ratke L, Voorhees P W.Growth and Coarsening-ostwald Ripening in Material Processing.Berlin:Springer, 2002
|
| [53] | 3 Bassett B C.Principles of Polymer Morphology.Cambridge:Cambridge University Press, 1981
|
| [54] | 4 Wunderlich B.Macromolecular Physics.New York:Ed.Academic Press, 1973
|
| [55] | 5 Armistead K, Goldbeck-Wood G.Adv Polym Sci, 1992, 100:221~312
|
| [56] | 6 Strobl G.The physics of polymers, 2nd Ed. Berlin, Heidelberg, New York:Springer, 1997
|
| [57] | 7 Keller A, Cheng S Z D.Polymer, 1998, 39:4461~4487
|
| [58] | 8 Ungar G, Zeng X B.Chem Rev, 2001, 101:4157~4188
|
| [59] | 33 Thierry A, Skoulios A E.Eur Polym J, 1977, 13:169~170
|
| [60] | 34 Cheng S Z D, Zhang A Q, Barley J S, Chen J H, Habenschuss A, Zschack P R.Macromolecules, 1991, 24:3937~3944
|
| [61] | 35 Cheng S Z D, Chen J H, Zhang A Q, Barley J S, Habenschuss A, Zschack P R.Macromolecules, 1992, 25:1453~1460
|
| [62] | 36 Cheng S Z D, Wu S S, Chen J H, Zhuo Q, Quirk R P, von Meerwall E D, Hsiao B S, Habenschuss A, Zschack P R.Macromolecules, 1993, 26:5105~5117
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
