Macromolecules - ACS Publications - American Chemical Society

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Macromolecules Published bimonthly

by the American

Coden:

EDITOR:

Chemical

Society

MAMOBx

FIELD H. WINSLOW

Bell Telephone Laboratories,

Murray

Hill, New Jersey

07974

ASSOCIATE EDITORS W A L T E R H. STOCKMAYER

J O H N K . STILLE

F R A N K A . BOVEY

Dartmouth College Hanover, New Hampshire 03755

The University of Iowa Iowa City, Iowa 52240

Bell Telephone Laboratories Murray Hill, New Jersey 07974

EDITORIAL ADVISORY BOARD W I L L I A M J. BAILEY

ROBERT B. F O X

MAURICE MORTON

ELKAN R. BLOUT

HERBERT N . FRIEDLANDER

KENNETH F. O'DRISCOLL

R A Y M O N D F . BOYER

WILLIAM E. GIBBS

C H A R L E S G. OVERBERGER

JOHN D . FERRY

MURRAY GOODMAN

WILLIAM D . PHILLIPS

E D W A R D M. F E T T E S

JAMES E . G U I L L E T

FRASER P. PRICE

MARSHALL FIXMAN

SAMUEL K R I M M

L E O N E . S T . PIERRE

P A U L J. F L O R Y

C A R L S. M A R V E L

OTTO VOGL

Ex officio:

R O B E R T W. L E N Z

MANAGER, EDITORIAL PRODUCTION: Editorial Production

Office, American

Chemical Society,

CHARLES R. BERTSCH

20th and Northampton

Sts., Easton, Pennsylvania

18042

from a recent issue. Allow four weeks for change to become effective. Subscription rates for 1970: Members, $12.00 per year, nonmembers, $24.00 per year. Postage to Canada and countries in the Pan-American Union, $3.00; to all other countries, $3.50. Single copies: current year, $6.00. Rates for back issues and back volumes available from Special Issues Sales Dept., 1155 Sixteenth St., N.W., Washington, D. C. 20036. Claims for missing numbers will not be allowed (1) if received more than 60 days from date of mailing plus time normally required for postal delivery of journal and claim, (2) if loss was caused by failure t o notify the Subscription Service Department of a change of address, or (3) if the reason for the claim is missing from files. This publication and the other ACS periodical publications are now available on microfilm. For information write t o : MICROFILM, Special Issues Sales Department, 1155 Sixteenth St., N.W., Washington, D . C. 20036.

© Copyright, 1970, by the American Chemical Society. Published bimonthly by the American Chemical Society at 20th and Northampton Sts., Easton, Pa. 18042. Secondclass postage paid at Easton, Pa. Production Staff: Manager, Editorial Production, CHARLES R. BERTSCH; Senior Production Editor, MARIANNE C. BROGAN; Assistant Editor, BARBARA A. RIEGEL.

Advertising Office: Century Communications Corporation, 142 East Ave., Norwalk, Connecticut 06851. The American Chemical Society and the Editors of Macromolecules assume no responsibility for the statements and opinions advanced by contributors. Business and Subscription Information All communications related to handling of subscriptions, including notification of change of address, should be sent to Subscription Service Department, American Chemical Society, 1155 Sixteenth St., N.W., Washington, D . C 20036. Change of address notification should include both old and new addresses, with ZIP codes, and a mailing label

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