Living Polymerization of Phenylacetylene by Novel Rhodium Catalysts. Quantitative Initiation and Introduction of Functional Groups at the Initiating Chain End

1998 ◽  
Vol 31 (21) ◽  
pp. 7572-7573 ◽  
Author(s):  
Yoshihiko Misumi ◽  
Toshio Masuda
Keyword(s):  
Functional Groups ◽  
Living Polymerization ◽  
Rhodium Catalysts

Anionic Polymerization of Monomers Containing Functional Groups. 8. Anionic Living Polymerization of 4-Cyano-α-methylstyrene

1997 ◽  
Vol 30 (4) ◽  
pp. 757-763 ◽  
Author(s):  
Takashi Ishizone ◽  
Yukiko Okazawa ◽  
Kenji Ohnuma ◽  
Akira Hirao ◽  
Seiichi Nakahama
Keyword(s):  
Functional Groups ◽  
Anionic Polymerization ◽  
Living Polymerization

Anionic polymerization of monomers containing functional groups. 4. Anionic living polymerization of N,N-dialkyl-4-vinylbenzenesulfonamides

1992 ◽  
Vol 25 (19) ◽  
pp. 4840-4847 ◽  
Author(s):  
Takashi Ishizone ◽  
Junji Tsuchiya ◽  
Akira Hirao ◽  
Seiichi Nakahama
Keyword(s):  
Functional Groups ◽  
Anionic Polymerization ◽  
Living Polymerization

scholarly journals Anionic Living Polymerization of Monomers Containing Functional Groups.

Kobunshi ◽  
1993 ◽  
Vol 42 (11) ◽  
pp. 902-906
Author(s):  
Seiichi Nakahama ◽  
Akira Hirao
Keyword(s):  
Functional Groups ◽  
Living Polymerization

Anionic polymerization of monomers containing functional groups. 3. Anionic living polymerization of N,N dialkyl-4-vinylbenzamides

1991 ◽  
Vol 24 (18) ◽  
pp. 5015-5022 ◽  
Author(s):  
Takashi Ishizone ◽  
Sumio Wakabayashi ◽  
Akira Hirao ◽  
Seiichi Nakahama
Keyword(s):  
Functional Groups ◽  
Anionic Polymerization ◽  
Living Polymerization

Improving integration between functional groups: A case in organization change and implications for theory and practice

1971 ◽  
Author(s):  
Warren G. Bennis ◽  
Michael Beer ◽  
Gerald R. Pieters ◽  
Alan T. Hundert ◽  
Samuel H. Marcus ◽  
...  
Keyword(s):  
Functional Groups ◽  
Organization Change ◽  
Theory And Practice

HYDROXYAPATITE, ALGINATE, AND CHITOSAN FOR BONE SCAFFOLDS: SPECTROSCOPY STUDY

2016 ◽  
Vol 19 (2) ◽  
pp. 93-100
Author(s):  
Lalita El Milla
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Functional Groups ◽  
Bone Growth ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Tissue Engineering Scaffolds ◽  
Hydroxyapatite Powder ◽  
Materials Used

Scaffolds is three dimensional structure that serves as a framework for bone growth. Natural materials are often used in synthesis of bone tissue engineering scaffolds with respect to compliance with the content of the human body. Among the materials used to make scafffold was hydroxyapatite, alginate and chitosan. Hydroxyapatite powder obtained by mixing phosphoric acid and calcium hydroxide, alginate powders extracted from brown algae and chitosan powder acetylated from crab. The purpose of this study was to examine the functional groups of hydroxyapatite, alginate and chitosan. The method used in this study was laboratory experimental using Fourier Transform Infrared (FTIR) spectroscopy for hydroxyapatite, alginate and chitosan powders. The results indicated the presence of functional groups PO43-, O-H and CO32- in hydroxyapatite. In alginate there were O-H, C=O, COOH and C-O-C functional groups, whereas in chitosan there were O-H, N-H, C=O, C-N, and C-O-C. It was concluded that the third material containing functional groups as found in humans that correspond to the scaffolds material in bone tissue engineering.

Sign in / Sign up

Export Citation Format

Share Document