|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
片晶折叠表面成核机制与结晶温度的相关性研究
DOI: 10.3724/SP.J.1105.2013.12416, PP. 654-659
Keywords: 高分子单晶,晶体,折叠表面,成核机制,自晶种
Abstract:
利用自晶种方法,在邻二氯苯稀溶液中培养聚丁二酸丁二醇酯(PBS)晶体,系统研究了结晶温度对其晶体形貌的影响.使用PBS单晶作为研究对象,有效避免小尺寸观察不具有统计意义的缺点.在结晶过程中,通过改变结晶温度和自晶种温度,可有效调控稀溶液中生长的PBS晶体尺寸大小和晶体中缺陷的数量,得到了单层无缺陷的单晶、双层晶体和多层晶体等一系列PBS片晶.基于对不同实验条件下得到片晶的形貌和表面粗糙度的统计结果,提出晶体中可容忍的缺陷数量与结晶温度和晶种温度密切相关这一结论,通过建立热力学模型,定性分析了晶体中缺陷数量和结晶温度的依赖关系,从片晶表面粗糙度统计结果出发,提出高分子片晶折叠表面成核机制,较好地解释了实验中观察到的不同PBS晶体的形貌.
| [1] | 1 Yang J P, Liao Q,Zhou J J,Jiang X,Wang X H,Zhang Y,Jiang S D,Yan S K,Li L.Macromolecues,2011,44:3511~3516
|
| [2] | 2 Nunez E,Gedde U W.Polymer,2005,46:5992~6000
|
| [3] | 3 Ruan J,Huang H Y,Huang Y F,Lin C,Thierry A,Lotz B,Su A C.Macromolecues,2010,43:2382~2388
|
| [4] | 4 Sun J R,Hong Z K,Yang L X,Tang Z H,Chen X S,Jing X B.Polymer,2004,45:5969~5977
|
| [5] | 5 Wang X H,Zhou J J,Li L,Chi M.Marcomol Rapid Commun,2007,28:2001~2006
|
| [6] | 6 Duan J F,Guo B H.J Polym Sci,Part B,Phys,2009,47:1492~1496
|
| [7] | 7 Chai Liguo(柴立国),Li Lin(李林),Liao Qi(廖琦),Yan Shouke(闫寿科).Acta Polymerica Sinica(高分子学报),2012,(11):1342~1348
|
| [8] | 8 Xu J J,Ma Y,Hu W,Rehahn M,Reiter G.Nature Materials,2009,8:348~353
|
| [9] | 9 Van Horn R M ,Zheng J X,Sun H J,Hsiao M S,Zhang W B,Dong X H,Xu J,Lotz B,Cheng Z D.Macromolecules,2010,43:6113~6119
|
| [10] | 16 Liu J P,Zhang F J,He T B,Macromol Rupid Commun,2001,22:1340~1343
|
| [11] | 10 Cheng W Y,Li C Y,Zheng J X,Huang P,Zhu L,Ge Q,Quirk R P,Lotz B,Deng L F,Wu C,Thomas E L,Cheng Z D.Macromolecules,2004,37:5292~5299
|
| [12] | 11 Kajioka H,Yoshimoto S,Taguchi K,Toda A.Marcomolecules,2010,43:3837~3843
|
| [13] | 12 Kimura K,Horii T,Yamashita Y.J Polym Sci,Part A:Polym Chem,2004,41:3275~3282
|
| [14] | 13 Franke M,Rehse N.Macromolesules,2008,41:163~166
|
| [15] | 14 Keith H,Chen W.Polymer,2002,43:6263~6272
|
| [16] | 15 Galeski A,Bartczak Z,Kazmierczak T,Slouf M.Polymer,2010,51:5780~5787
|
| [17] | 17 Wunderlich B.Macromolcular Physics.New York:Academic Press,1973.249
|
| [18] | 18 Huang kun(黄昆).Solid State Physics(固体物理学).Beijing(北京):Higher Education Press(高等教育出版社),2010.543
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
