Polyurethane Networks Nanoreinforced by Polyhedral Oligomeric Silsesquioxane

Macromolecular Rapid Communications - Tập 26 Số 3 - Trang 196-200 - 2005
Hongzhi Liu1, Sixun Zheng2
1Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
2Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China. Fax: +86‐21‐54741297

Tóm tắt

AbstractSummary: Octaaminophenyl polyhedral oligomeric silsesquioxane (OapPOSS) was used as a crosslinking agent together with 4,4′‐methylenebis‐(2‐chloroaniline) to prepare polyurethane networks containing POSS. Fourier transform infrared spectroscopy (FT‐IR), dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA) were employed to characterize the POSS‐reinforced polyurethane. The POSS‐containing PU networks displayed enhanced glass transition temperatures (Tgs) and the storage moduli of the networks of the glassy state and rubber plateaus were also observed to be significantly higher than that of the control polyurethane although only a small amount of POSS was incorporated into the systems. The results can be ascribed to the significant nanoscale reinforcement effect of POSS cages on the polyurethane matrix. TGA results showed the thermal stability was also improved with incorporation of POSS into the system.Dynamic mechanical spectra of PU and PU nanocomposites containing POSS.imageDynamic mechanical spectra of PU and PU nanocomposites containing POSS.

Từ khóa


Tài liệu tham khảo

10.1126/science.1962191

10.1002/(SICI)1099-0739(199810/11)12:10/11<707::AID-AOC776>3.0.CO;2-1

10.1039/a901308c

10.1039/a807302c

10.1021/ma00060a053

10.1021/ma00128a067

10.1007/BF01057895

10.1021/cm950536x

10.1021/ma960609d

10.1002/(SICI)1097-4628(19960425)60:4<591::AID-APP12>3.0.CO;2-2

10.1002/(SICI)1099-0488(199808)36:11<1857::AID-POLB7>3.0.CO;2-N

10.1016/0022-328X(96)06364-4

10.1080/02603599508035785

10.1023/A:1015287910502

10.1016/S0032-3861(00)00389-X

10.1002/(SICI)1097-0126(200005)49:5<437::AID-PI239>3.0.CO;2-1

10.1002/fam.792

10.1021/ja01060a033

10.1021/ja011781m

10.1021/cm049463k

10.1021/cm0208408

Leu C.‐M., 2004, Chem. Mater., 15, 3271

10.1016/S0040-6031(00)00385-3

10.1021/ma9800764

Lee A., 2000, Polym. Mater. Sci. Eng., 82, 235

10.1021/ma021764x

10.1016/S0032-3861(02)00812-1

10.1016/S0079-6700(02)00018-7

10.1021/ja010720l

10.1016/S0032-3861(98)00726-5

Thông tin
Thông tin xuất bản

Macromolecular Rapid Communications

Tập 26 Số 3

196-200

Thông tin tác giả