Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Semicrystalline polyamide engineering thermoplastics based on the renewable monomer, 1,9-nonane diamine: Thermal properties and water absorption

Journal Article · · Polymer-Plastics Technology and Engineering
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [2]
  1. North Dakota State Univ., Fargo, ND (United States); North Dakota State Univesity
  2. North Dakota State Univ., Fargo, ND (United States)
Here, a series of poly(1,9-nonamethylene adipamide-co-1,9-nonamethylene terephthalamide) copolymers were produced using melt polymerization and the thermal properties, crystal structure, and moisture uptake characterized. The results confirmed that the copolymers exhibit isomorphism. As expected, glass transition temperature and the apparent melting temperature increased with increasing terephthalmide content. Using the difference in the apparent melting temperature to the crystallization temperature as a measure of relative crystallization rate, it was observed that crystallization rate decreased as the terephthalamide content of the copolymer was increased from 0 to 50 mole percent but then sharply increased when increased beyond 50 mole percent. This behavior may be the result of extensive inter- and intramolecular interactions in the melt associated with terephthalmide units in the polymer chain that nucleate crystallization upon cooling below the equilibrium melting temperature. Comparing the thermal properties of copolymers possessing an excess of terephthalmide units to the commodity polyamide Nylon 6,6, it is believed that these copolymers may have utility as partially renewable engineering thermoplastics.
Research Organization:
North Dakota State Univ., Fargo, ND (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
FG36-08GO88160
OSTI ID:
1053189
Report Number(s):
DOE/GO/88160--47
Journal Information:
Polymer-Plastics Technology and Engineering, Journal Name: Polymer-Plastics Technology and Engineering Journal Issue: 12 Vol. 51; ISSN 0360-2559
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English

References (37)

Einfluß verzweigter codiole auf das kristallisationsverhalten von aromatischen polyestern journal December 1977
Synthesis and crystallization behavior of nylon 12,14. I. Preparation and melting behavior journal February 2003
Détermination de la viscosité intrinsèque de solutions de polymères par une simple détermination de la viscosité journal November 1962
Effects of rigid segments on structure and properties of unoriented and oriented poly(p-phenylene terephthalamide-co-ethylene terephthalates) journal April 1987
ChemInform Abstract: Plant Oil Renewable Resources as Green Alternatives in Polymer Science journal January 2008
An investigation of the structures of polyamide series journal January 1959
The crystal structure of polyheptamethylene pimelamide (nylon 77) journal January 1959
On the Lamellar Crystal Structure of Nylons 6,8 and 8,10: A Study Combining Electron Microscopy and Energy Analysis journal January 2003
Investigation of odd-odd nylons based on undecanedioic acid. 2: Crystal structures journal January 2005
The p-phenylene linkage in linear high polymers: Some structure–property relationships journal January 1952
Isomorphous replacement in copolyamide systems: Adipic and terephthalic acids journal January 1960
Isomorphism phenomena in macromolecules journal June 1961
Structural data and thermal studies on nylon-12,10 journal October 1995
Isomorphism in synthetic macromolecular systems book January 1969
Crystallization and morphology of nylon-6,6 crystals: 1. Solution crystallization and solution annealing behaviour journal January 1981
Sorption of water by aliphatic polyamides. Review journal January 1985
Some aspects of the crystallization of ethylene copolymers journal December 2000
Amide modified polybutylene terephthalate: structure and properties journal February 1997
Polyesteramides based on PET and nylon 2,T journal April 2000
Crystal Structure of Novel Polyamides with Long Diacid Segment:  Polyamides 2 16, 4 16, 6 16, 8 16, 10 16, and 12 16 journal April 2003
Morphology and Structure of Chain-Folded Lamellar Crystals of Nylons 2 22, 4 22, 6 22, 8 22, 10 22, and 12 22 journal March 2004
Isomorphous Replacement in Copolyamide Systems. Homologs of Adipic and Terephthalic Acids journal October 1959
Theory of Copolymer Crystallization journal July 1973
Polyamides with a Choice of Structure and Crystal Surface Chemistry. Studies of Chain-Folded Lamellae of Nylons 8 10 and 10 12 and Comparison with the Other 2N 2(N + 1) Nylons 4 6 and 6 8 journal June 1997
Comparison of Structures and Behavior on Heating of Solution-Grown, Chain-Folded Lamellar Crystals of 31 Even−Even Nylons journal April 2000
A Novel Method for In Situ Synthesis of Nanostructure Hydroxyapatite–nylon 66 Composites in Tissue Engineering journal June 2012
Mechanical Properties and Plastic Deformation of PA-6 and of some of PA-6 Composites and Blends journal August 1999
Study on the Friction and Wear Behaviors of Modified PA66 Composites journal May 2009
Studies on Crystal Morphology and Crystallization Kinetics of Polyamide 66 Filled with CaCO 3 of Different Sizes and Size Distribution journal April 2012
Effect of Heat Treatment on the Structure and Properties of MC Nylon 6 journal April 2012
Binary Alloys of Nylon 1010 and Ethylene-Propylene Copolymer: Chemical, Morphological, and Mechanical Analysis journal March 1997
Chemicals from Biomass journal November 2007
“Green” Chemicals from Renewable Agricultural Biomass - A Mini Review journal October 2008
Isomorphism in synthetic macromolecular systems book January 1969
Some aspects of the crystallization of ethylene copolymers journal December 2000
Amide modified polybutylene terephthalate: structure and properties journal February 1997
Plant oil renewable resources as green alternatives in polymer science journal January 2007

Cited By (3)