Structure of Thermotropic Polyesters with Large Substituents.

Chin, H. H.; Azaroff, L. V.; . Furukawa, A.; Lenz, R. W.

Structure of Thermotropic Polyesters with Large Substituents.

Active / Technical Report | Accession Number: ADA184086 |

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Abstract:

Thermotropic aromatic polyesters were aligned by drawing from nematic melts and by quenching in a magnetic field of 15 tesla and subsequently examined by x ray diffraction. The degree of alignment obtained depended slightly on the substituent H, F, C1, Br, CH3, NO2 present with the highest degree of alignment observed when the arylsulfonyl substituted group contained in the para-position H or F and the lowest when it contained Br or CH3.

Author(s):

Chin, H. H. ; Azaroff, L. V. ; . Furukawa, A. ; Lenz, R. W.

Author Organization(s):

CONNECTICUT UNIV STORRS INST OF MATERIALS SCIENCE

Descriptive Note:

Technical rept. no. 4, 1-27 Aug 87,

Pagination:

0012

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Contract/Grant Number(s):

N00014-86-K-0772

Subject Terms

Joint Capability Areas:

JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_4.6_Engineering

Communities of Interest:

Weapons Technologies

Descriptor(s):

*POLYESTER FIBERS, AROMATIC HYDROCARBONS, X RAY DIFFRACTION

Field(s)/Group(s):

Polymer Chemistry

Keyword(s):

*Aromatic polyesters

Report Date:

1987 Aug 27