A study of the kinetics of small polymers: Part I. Measurements of transfer constants. Part II. Qualitative evaluation of the cross-linking constant k(x)/k(p) by an indirect method

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by  Strickland, Kenneth Percy

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A STUDY OF SHE KINETICS OF SMALL POLYMERS
FART X - Measurements of Transfer Constants.
PART II - qualitative evaluation of the Cross-linking
Constant -— by an Indirect Method.
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Kenneth Percy Strickland
Submitted in partial fulfillm ent of the
requirements for the degree ef
Master of Science
university of Western Ontario
1960
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
UMI Number: EC45409
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Approved for the
Department of Chemistry
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(iii)
This investigation was wade possible by a suawer
scholarship from the National Research Council and a scholar­
ship froa the Research Council of Ontario. The author wishes
to express his thanks to the National Research Council and
Research Council of Ontario for th is assistance.
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ACKNOWLEDGEMENTS
The author wishes to express his sincere thanks
to Dr. C. Sivertz, Professor of Physical Uheiistry at th is
University, for suggesting th is problem and for providing
able guidance and help throughout the course of th is work.
His thanks are also extended to other mashers
of the staff who helped in th is work; to G. Trick for help
in the use of his photoeheaical apparatus; to H. Windsor
who aided in the purification of chemicals and to J. Batzold
and C. McDonald for their helpful suggestions.
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coffragEs
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ACKNOWLEDGEMENTS .. .. (!▼)
CONTENTS .. (▼) (vi)
LIST OF TABLES ..................................................................................................... (▼!!)
LIST OF ILLUSTRATIONS......................................................................................... (T ill)
ABSTRACT .. . . .................................. (lx)
PART I
SECTIOH
I INTRODUCTION........................................................................................ 1
II THEORETICAL........................................................................................ 4
III EXPERIMENTAL
Purification of Chemical* .. .. •• .. .. 10
M ethod .. .. .. •• 11
Styrene Polymeriza t ions .. .. .» •• .• 11
Butadiene Folym erizatione...................................... 13
IF RESULTS .. .. .. 15
Styrene Polymerizations •. .. .. . • .. 15
Butadiene Polymerizations • .. .. .. •• 19
V DISCUSSION ........................................................................................ 21
PART II
SECTION
I INTRODUCTION ............................................................................... 27
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(vi)
page
IZ EXPHKMiSNTAL....................................................................................... 31
Purification of Chanieala . •• •• >. .. .. 31
Method ...................................................................................... 31
Peroxide In itia tio n .............................................. 31
Photocheoical In itia tio n .................................... 33
III RESULTS .. .. .. .. 36
Peroxide In itiatio n •• •• . . . . .. .. 36
Photochemical Initiation • •• .. •• .. 38
IY DISCUSSIQU ........................................................... 40
APPENDIX..................................... 44
BIBLIOGHaF H T ........................................................................................................
VITA ..........................................................................................................................
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LIST OF TABUS
Peg*
TABLE I ...................................................................................... 11
TABLE I I ...................................................................................... 14
TABLE I I I ....................................... 15
TABLE I T .............................................. 17
TABLE T .................................................................. .. .. 17
TABLE V I...................................................................................... IB
TABLE VII .. .. .. .. 20
TABLE V III.................................................................................... 32
TABLE IX ...................................................................................... 34
TABLE X ................................................ 37
TABLE X I....................................................................................... 36
TABLE H I ...................................................................................... 39
TABLE XIII . .. .. .. .. 45
TABUS XIV...................................................................................... 46
TABLE X V ...................................................................................... 46
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