Molecular composition distribution of polycarbonate/polystyrene blends in cylindrical nanopores

被引：12
作者：
Wu, Hui
Su, Zhaohui [2 ]
Takahara, Atsushi [1 ]
机构：
[1] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, Fukuoka 8190395, Japan
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Beijing, Jilin, Peoples R China
来源：
POLYMER JOURNAL | 2011年 / 43卷 / 07期
基金：
中国国家自然科学基金;
关键词：
AAO; molecular composition distribution; nanorods; polymer blends; SYNDIOTACTIC POLYSTYRENE; CRYSTAL ORIENTATION; DIBLOCK COPOLYMER; PROPERTY RELATIONSHIPS; SEGMENTAL DYNAMICS; ANODIC ALUMINA; MONTE-CARLO; CONFINEMENT; MORPHOLOGY; CRYSTALLIZATION;
D O I：
10.1038/pj.2011.25
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polycarbonate/polystyrene (PC/PS) blend nanorods with various diameters were prepared by melt-wetting porous anodic aluminum oxide templates with partially miscible blend melts. The molecular composition distribution of PC/PS blend polymers inside nanoporous templates of varying diameters was investigated by scanning electron microscopy, Fourier transform infrared and differential scanning calorimetry. A gradient composition distribution of the polymer blends formed in the nanopores owing to the difference in viscosity between the two polymers during capillary flow. The PC content of the nanorods increased from top to bottom along the long axis of the rods but decreased with rod diameter owing to stronger confinement by the nanopores. Polymer Journal (2011) 43, 600-605; doi:10.1038/pj.2011.25; published online 20 April 2011
引用
收藏
页码：600 / 605
页数：6
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