Home
Giới thiệu
Tài khoản
Đăng nhập
Quên mật khẩu
Đổi mật khẩu
Đăng ký tạo tài khoản
Liệt kê
Công trình khoa học
Bài báo trong nước
Bài báo quốc tế
Sách và giáo trình
Thống kê
Công trình khoa học
Bài báo khoa học
Sách và giáo trình
Giáo sư
Phó giáo sư
Tiến sĩ
Thạc sĩ
Lĩnh vực nghiên cứu
Tìm kiếm
Cá nhân
Nội dung
Góp ý
Hiệu chỉnh lý lịch
Thông tin chung
English
Đề tài NC khoa học
Bài báo, báo cáo khoa học
Hướng dẫn Sau đại học
Sách và giáo trình
Các học phần và môn giảng dạy
Giải thưởng khoa học, Phát minh, sáng chế
Khen thưởng
Thông tin khác
Tài liệu tham khảo
Hiệu chỉnh
Số người truy cập: 107,548,894
Synthesis and Characterization of Polyaniline Nanoparticles in Phosphonic Acid Amphiphile Aqueous Micellar Solutions for Water borne Corrosion Protection Coatings
abortion stories gone wrong
information about abortions
teenage abortion facts
Tác giả hoặc Nhóm tác giả:
F.X. Perrin, T.A. Phan,
D.L. Nguyen
cvs weekly sale
cvs print
prescription savings cards
walgreens pharmacy coupon
site
promo codes walgreens
Nơi đăng:
Journal of Polymer Science Part A: Polymer Chemistry;
S
ố:
Volume 53, Issue 13;
Từ->đến trang
: 1606-1616;
Năm:
2015
Lĩnh vực:
Khoa học công nghệ;
Loại:
Bài báo khoa học;
Thể loại:
Quốc tế
TÓM TẮT
Polyaniline (PANI) dispersions consisting of 270 to 380nm sized particles were prepared by oxidation with ammonium peroxy disulfate (APS) in n-decylphosphonic acid (DPA) micellar solutions. The green dispersions do not undergo macroscopic precipitation for more than a year. Thesynthesized DPA doped PANI exhibited enhanced electrical conductivity (3.6 S.cm
-1
) compared with DPA-PANI (2.3x10
-4
S.cm
-1
) prepared by post synthesis treatment of the PANI-base with DPA. It was shown that through protonation with decylphosphonic acid, polyaniline showed a significantly enhanced solubility in common organic solvents like chloroform, xylene, etc.The synthesized PANI was characterized by intrinsic viscosity, solubility, FT-IR, conductivity, SEM, and TGA measurements. The wide-angle X-ray diffraction study revealed the appearance of a peak located at low angles (d = 29.4–35.3A˚) suggesting the formation of layered structure of PANI backbone separated by long alkyl side chains of DPA. The anticorrosive performance of the bilayer coatings composed of a bottom layer of DPA doped polyaniline covered with a polyvinylbutyral topcoat, have been demonstrated for steel exposed to neutral saline solutions. It was found that the inhibitive properties of DPA dopant provides further protection to the base metal through smart release when damage is produced on the surface of the coating.
marriage affairs
open
i want an affair
ABSTRACT
Polyaniline (PANI) dispersions consisting of 270 to 380nm sized particles were prepared by oxidation with ammonium peroxy disulfate (APS) in n-decylphosphonic acid (DPA) micellar solutions. The green dispersions do not undergo macroscopic precipitation for more than a year. Thesynthesized DPA doped PANI exhibited enhanced electrical conductivity (3.6 S.cm
-1
) compared with DPA-PANI (2.3x10
-4
S.cm
-1
) prepared by post synthesis treatment of the PANI-base with DPA. It was shown that through protonation with decylphosphonic acid, polyaniline showed a significantly enhanced solubility in common organic solvents like chloroform, xylene, etc.The synthesized PANI was characterized by intrinsic viscosity, solubility, FT-IR, conductivity, SEM, and TGA measurements. The wide-angle X-ray diffraction study revealed the appearance of a peak located at low angles (d = 29.4–35.3A˚) suggesting the formation of layered structure of PANI backbone separated by long alkyl side chains of DPA. The anticorrosive performance of the bilayer coatings composed of a bottom layer of DPA doped polyaniline covered with a polyvinylbutyral topcoat, have been demonstrated for steel exposed to neutral saline solutions. It was found that the inhibitive properties of DPA dopant provides further protection to the base metal through smart release when damage is produced on the surface of the coating.
© Đại học Đà Nẵng
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn