Handbook of Polymer Synthesis Second Edition Episode 15 pdf
Handbook of Polymer Synthesis Second Edition Episode 15 pdf
... importance of this first example of a solid phase synthesis on polymer support which
was followed by the development of numerous polymeric reagents [148]. Presently, the
fast expanding technique of combinatorial ... of the great number of hydroxyl groups in the
prepolymer, curing with dianhydrides can form very densely crosslinked, second- stage
polymers if used in relatively...
Handbook of Polymer Synthesis Second Edition Episode 4 pdf
... kind of polymerization is often limited by the occurrence of side reactions, including
(1) the attack of the initiator at the carbonyl double bond of the monomer or polymer,
(2) chain transfer of ... preparation of ABA block copolymers when bifunctional initiators are used, whereas
the first method enables the synthesis of triblock copolymers by addition of the first
monomer...
Handbook of Polymer Synthesis Second Edition Episode 13 pdf
... University of Technology, Kaunas, Lithuania
I. FOREWORD
Since 1992 when the first edition of the Handbook of Polymer Synthesis was published
a number of new applications for photoconductive polymers ... use of tetrahydrothiophene instead of
dimethyl sulphide in the synthesis of the precursor polymer [141]. The use of the cyclic
leaving group facilitates the eliminat...
Handbook of Polymer Synthesis Second Edition Episode 1 ppt
... is
CatÀM
1
polymer þ M
1
À!
k
11
CatÀM
1
ÀM
1
polymer ð32Þ
CatÀM
1
polymer þ M
2
À!
k
12
CatÀM
2
ÀM
1
polymer ð33Þ
CatÀM
2
polymer þ M
1
À!
k
21
CatÀM
1
ÀM
2
polymer ð34Þ
CatÀM
2
polymer þ ... comonomer, as it promotes
the polymer s degradability in the presence of light [182].
As a consequence of the diversified nature of the comonomers, a large number of
variants of...
Handbook of Polymer Synthesis Second Edition Episode 2 docx
... conditions of radical-induced vinyl polymerization (e.g., the rate of polymerization
was found to be proportional to the square root of the initiator concentration). However,
the average degree of polymerization ... AIBN-started radical polymerization of o-ClSt in
bulk at 30
C. He found the rate of polymerization to be about 15 times higher than that of
styrene. Propagation...
Handbook of Polymer Synthesis Second Edition Episode 3 pot
... course of the polymerization [247–249]. Particularly attractive
aspects of this technique of radiation polymerization are the excellent efficiency of
polymerization together with the high rates of polymerization ... the degree of polymerization should be a function
of the number of polymer lattices and initiator con centration. However, for the polymeri-
zation of VC in emul...
Handbook of Polymer Synthesis Second Edition Episode 5 potx
... rings:
ð64Þ
At a polymerization temperature of 22
C, approximately 80% of the cyclopentane rings in
the polymer are trans. Table 23 shows some other examples of the polymerization of
nonconjugated ... coordination of the monomer occurs with only one double bond for both isomers of
pentadiene. In the presence of CrO
3
only the trans-isomer of pentadiene is polymerized to
a...
Handbook of Polymer Synthesis Second Edition Episode 6 pot
... Ziegler–Natta polymerization of
norbornene (NBE) – received by means of TiCl
4
/EtMgBr catalysts a novel polymer [2,3].
In 1957 Eleuterio (Du Pont) filed a patent, which describes the polymerization of severa ... predictions [267].
These secondary metathesis reactions of course may also affect the microstructure of
the polymers, e.g., the fraction of cis double bonds [275,283]. Th...
Handbook of Polymer Synthesis Second Edition Episode 7 pptx
... interesting group of polymers. Two
precursor routes were recently explored. Firstly, synthesis of PEKs having pendant
t-butyl groups [194,214, 215] which can be eliminated as isobutylene, and secondly, ... polycondensations of the monomers (95c,d) [154 ].
ð93Þ
ð94Þ
ð95Þ
1. Liquid-crystalline PEKs?
One research group reported in three papers [155 157 ] on synthesis and characteriza-...
Handbook of Polymer Synthesis Second Edition Episode 8 ppt
... respectively.
Setting the number of moles of the polyol, n
pol
,tobe1,r becomes the number
of moles of the chain extender. Number of moles of the diisocyanate, n
ISO
, at the
stoichiometric ratio of NCO/OH groups ... the immiscibility of the hard and
soft segments. Degree of phase separation (or phase mixing) affects the properties of the
polymers, and it depends on the str...
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