Modu1ated temPelatule Dsc sfudies on th€ phase bansitions of Poly

KRŻYszToFPlELlcHoWsKI' KINGAFLE]TUCII
cncow UnivcBity olTchnology
DePł ment ol clremisty aM Td'nolÓ8y of P.]vńeĄ
!l. Wal.za1'\ka 21,3r r55 Krakóq Polind
Modu1ated temPelatule Dsc sfudies on th€ phase bansitions of
Poly(ethylene oxide). Effect of temPelature st€p
ITAPID COMMUNICATION
sumnary _ P]'mcbehaYiour ol poly(ł]'vlcne ox c) (PEox) wis inlesti_
galcd br nodulatcd t ńpdal!ę diffceniial Ńanning olo mety(Dsc)
shp s.atr alr.rńłtin8 Dsc at diffelcnt bńPltafuĘ stcPs. Addłional lcatufts
nponc
s durinS phase
ransitions ca| bc
5c3n.Ń5 dr. rcv*siblc comPoncni of th. mcłiĘ pL(,t\ \!as dcacasjns
Thjs clfcd B duc to i shilt of ilre equilibriun *ato of ńcltin8_rcqśt 11iza_
iiotr
PloreŚes łowards highli degF. of onvcBion tlmt hindcB
molc't\{[iblc
lat nk].alion atrd relr*alliŻati.n Analysis o' ihP nonjaeEible
.omponenr dfi'rg $,*łllizatn ŚhÓ!v!d thł an lnocase in the sfuP .łJs.d
a v.ry di$i'1Ćt ind.^sc i| thg ńon ĘreśibhomPorc sĘMl dre b a]
han.R] .lyshlliŻłtjon of rhc lŚ def€lcd slru.fures }łi.h was laĆilitatcd by
&y
wolds: lolv(cihv lc| c oxid c), nodulłtcd tcD]Potłiut djffs.ŃEl scan'
n|3 ciloinct'y, c'fNt ol tcmpcrJturc ścp,Phise baNitions, rcv.śjblc ałl
Polv(ctl'v]d'c or c) (P!ox), aD
. v*allnre themoPh*n F.lytu!,
pii'ts,
paPe!
(D6n!s, dhlc hbI
I
ińPoti|t scni.
irc uscd in w cr
P.rkisrns nih'iils, solid clNrol
irsiscntsrordn,gslr rl ALelativ.r),nN,appri.atioi,
rrut c .ofndcred is a \.ry proh
PĘoX as i thernDl .ntrgv nolagc
hrgc h.it of ILEio| ind. Ól1llnt
t'l] \l.śDf tlr.!! aFpli.iiiliR tquilcśabhfud rcPc _
ditioB'
lluk!'
ńckńrg
i|d avśJllizaliol ol PEox
ics 15 il. D6piturl
ilg d'e nihnc ofPhisc hłnsiiions
.ELtnuy bc
iIa new r!.hnq!c frodulatcd
tlmFsaturc drf'ci.hcd
lcrcf tiar s.anning carorindry (MT Dsc)
17] m thc *cF ssn alrcnatiĘ (ssA Dsc) mod. n iP'
t,lrcd I'r rrris nrthod, th! r*ir hc
b.ing thc drFe ofihe hcii fro\Y
hold t.npĆrafurc PrqriE Th. totil h.at flow on b.
scPanbd to drc lcvcEńl. ind non{evłsibl..omPo
thłt t]nc is no M.e$ y b lsc
r{uig t
rs'ornr.tion
rcvcEiblc .onp. neńi $ ca lcu litcd dilcdly from thc Q|o mctic data (isothcrnil scgncnts) ł|d phasc la8
The ailr of this wolk iŚ b inv*rigatĆ th. pha\e lr!_
havn,u! ol p.ly(cthvleń! dxjdc) un
P.lt(erhylene oxidĆ) (PEox) (ńolE
l''5 P'odu.cd by PolysĆicńc.s c
Th.rm3l urvcsti!łiions w.r. P.
powcr.ońP.nsłtcLl PerkiFEl'ner,,PyriŚ Diłmond
Dsc"' FiĘL srmp]e was heated abÓ
perafo
t.ara hcrłin3
rate ol10
K/nin, hdld rdthernauy
for 3 m'n ańd
lhcn.mlcd b
3l't.t
a
Mling r.h
o1
]0 X/ńin ssA'Ec m€sulmeń
K/nin, di1ferd! slcP) llgc done i. ĆlGld .lum'num
p ts lvith sańPlc ńłśof 3 n3 und.r łĘon now ol
20.N'/min' P'ior b U* ih. cłlor
R.sulb
of
arion rewEibl. ptus
mnveŚion d'i! hindffi
bNlttls higlw dcEiN or
nolNhr N.l€tjÓn
An oppGit cfi.d ..n be obscFcd
omponenrdurin! m.rrins (Fis. 3)
h
'nd
t
ńon l$,c4'ble
a
hGi norv n.asufm.nrs
dilfcrcnt sleps a.c ptcśĆńtcd in Fig. ].
?l
fi( 3 ssn
Dsc
rEox nrfint
',1
ał. 55,a.D5c F'lilśofil * lmnśllinn ń tLox d
' !x|s:1 _o'25 k{.2 0'5'Ę,3 _ ].'.Ś
n fuł
"l
k'
4 xox trtEnł. .o ] r
dłftfut *F n u t^ {.lln$ 'lN
',ń'ikś
''
r emPrfóblc slcP is inm$in8' dk nunbcr or L].
nllidllv dńt Pc€s
dEt arc nd}6.Ąiblc, is nL{'
in.r!.sins. Non-rcv.Bible comp.ncnr of rhr Plo\
hclńnB puN dKib€ś ffplclc Phi* hi6'h'ń Ur
ho.rl studurc. rphcrulihs. l! rhc lan.llae, polym$ dr ns .rc cirlrri
]vkf! inlotmalion .iń bc ohla&\l ia spłntion o' m'
vc*iblc and nonłcvĆhiblc .ońPo|clb k iPPlrcd by
. Ś. Gcilhhn8 Plolilc śuperimpos.d to lhć norma] h]c!r
Iullycxtend.d orloldcd, a smJllnuDlblr rimcs
Mpsnturc slopc d!.in8 a Dsc cxpcim.nr
The .rlsbllialioń bchav'ou. ol P
By incrcasin! lh. knpcalurc slcP b.hge.ń śuh' aated b'v.Ppl!'ińB tolń ArT.ni ł
s.<l!cnl idtremll ŚlBnoĘ lhc Bńiblc MPoncńt
ńM thdj6' Tnoc is $nc urcc
of |he meltnB pm.ś k d.@śins _ lhk clad iŚ d!!
lizanon tegińo sine a ch.n8c in norPholoEy kly il
b i shifi df thr q!ilibń!m śżto' nrcltiĘ_rc.r*illi lo8raPhic oricnl i.'n df $e 8rÓwlh fbno ńiv ov$li|
lhc ouEc ol Bvsśiblca.d n n'lcvssiL' c .onPoncn
ot PEOX cry*,Iiarion,c pt*ŃRt rFi* rrn,l5
I
r^k
|IofiIB of ltńiu..rflp14n rl
di|ll!ł ł.F n tnb.t rl ąló
's
lh.
nl
rttr
riN.,!. SS^'Dsc wfttE ol
|,Eox d!'łrniali l dt diftdł :l4lś.nł'!rś
'.rfu\ 'ś
fo o
incRsin8 th.t.nPc.iiulc *cP b.Ń.ol
turc progi?m wo Gn dlaw rhc
_
By
łqncnt is. rhem i l scgnen
.ft}. mclń|E plo.cs was
ts, the re]€F
sur)
iblr con pon!
n
t
'l!deasi]8
of mclhn8_r.dy*allization rcvcrolL,lc Pro.eŚes to
wards hiSher dcsrcc of convcBion rhai hirdeis moledl
F(
5' ss,Ą
PEoX
Dsc prdilA d
mtr
fułśaŻlry"rr, ł 1lr
ł!'hllijlirn l, lktdł łlps i ł'rs ol dłlśtr
r.vcśitlc comłomnt silMls
.hłndcr lvhi.h was aho nrlfi] fol odl.r FolyncĘ n 0l
Morc i,rforfation rn b. tuund jfanarr6is ofrhcnon{e
Tlrc
\
tśiblc.ompo|c|t E po1onncd' An inftełse ilr
Pon.nr sjgN]
lhe
łcP
onc.in cxPlłi'r pr
urform rcmpcrahm filrLr
Io]nd b atomiĆ fot.r mi.n".oPv (AF[o ard sENl i'}
vstj8ihons lol jsorłdiĆ polyPfup
hrcs rns rhc rcsuu of
t]rc comp.tilnń of landlic b fll] thc spa.c dltin8
gro\th at thg t!ńPclatur. gEdic|t n]l
non
ń
lal nuĆIĆation.nd relyśall'atiÓn
A na lysn ol ilre m njeveĘible .ompo ncn t dun ng
sysillizatior sho*cd thar in in.rcasc ir tne .p
.auscd i lery dśtinct jnocisc i
.omPoncnr signar du. to cfh r(d
lcs.dcfe.fud śb.furcs whi.h lvas fłcilitatą] bv |atg&
M.dulatcdicnPcthtrcDscyield
jo| (iI comparkon with dłssi.a| Dsc)
lcy J]' F' E KÓlesk.l' Y: ,,Po
'
Ż
cni]J D o' N': Tbi
ł'
Pńrichsski K,Ilgtuch
'
Pic]ichowsh
6. chcry s
abour
(,
urł'l i''
E.jtu.h
1995,
( Poł
(:
/'
/]ł1 |i//' s.j (f
7
Pńji&
9'
Wu L, LisoNskiM.' TalibuddĘ s,
3' s
ag, B9
z. D., chei l., r icboror
vsh x', aqfu.r) K
rdol M'' Bailey N. A,
s.h.iilnbq
b
Phłsc bclrłlioUr of poly(ldlllcnc oxidd as łllo$'hc
scPamtc ihe r.leĘiblĆ iid ion !cvc6]bh .omPonenb
oI thc (tÓbl) l'cat
on rhc hTis oI Frfonned ncas
'lov
l' B
Pa*bk
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M
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hd v. vJr H.mcjńj.k A ; T/Łt
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