Document Detail

Synthesis and properties of coumaric acid derivative homo-polymers.
MedLine Citation:
PMID:  18177555     Owner:  NLM     Status:  MEDLINE    
Poly(4-hydroxycinnamic acid) (P4HCA), poly(3-hydroxycinnamic acid) (P3HCA), poly(3-methoxy-4-hydroxycinnamic acid) (PMHCA) and poly(3,4-dihydroxycinnamic acid) (PDHCA) were synthesized by the thermal poly-condensation of the corresponding monomers, which are lignin precursors, coumaric acid derivatives consisting of cinnamoyl groups and different position and number of OH groups. The solubility of the homo-polymers in organic solvents decreased in the order of P3HCA > PDHCA > P4HCA > PMHCA. The wide angle X-ray diffraction (WAXD) results indicated that P4HCA or PMHCA with p-OH group had higher crystallinity, in contrast to P3HCA or PDHCA with m-OH group which had lower crystallinity. Crossed-polarizing microscopy suggested that P4HCA had the nematic liquid crystal properties at 220 degrees C and PDHCA showed birefringence properties at 200 degrees C. In cell-adhesion tests, PDHCA showed the highest cell adhesion (ca. 70%), whereas P3HCA, P4HCA and PMHCA had 50, 18 and 10% cell adhesion, respectively. The coumaric acid derivative homo-polymers can be useful as cell adhesion controllable thermotropic polymers for biomedical and environmental fields.
Tran Hang Thi; Michiya Matsusaki; Dongjian Shi; Tatsuo Kaneko; Mitsuru Akashi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomaterials science. Polymer edition     Volume:  19     ISSN:  0920-5063     ISO Abbreviation:  J Biomater Sci Polym Ed     Publication Date:  2008  
Date Detail:
Created Date:  2008-01-07     Completed Date:  2008-04-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9007393     Medline TA:  J Biomater Sci Polym Ed     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  75-85     Citation Subset:  IM    
Faculty of Technology of Organic Chemistry, College of Chemistry, Ministry of Industry, Tien Kien, Lam Thao, Phu Tho, Vietnam.
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MeSH Terms
Caffeic Acids / chemistry
Cell Adhesion
Cell Line
Coumaric Acids / chemistry*
Fibroblasts / cytology
Liquid Crystals / chemistry
Microscopy, Polarization
Molecular Structure
Molecular Weight
Polymers / chemical synthesis,  chemistry*
Solvents / chemistry
Spectroscopy, Fourier Transform Infrared
Tissue Scaffolds / chemistry
X-Ray Diffraction
Reg. No./Substance:
0/Caffeic Acids; 0/Coumaric Acids; 0/Polymers; 0/Solvents; 1135-24-6/ferulic acid; 331-39-5/caffeic acid; 7400-08-0/4-coumaric acid

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