Organic & Biomolecular Chemistry
Paper
= 5.3 × 10 g mol−1,
4
4995; (c) H. Goto, H. Katagiri, Y. Furusho and E. Yashima,
J. Am. Chem. Soc., 2006, 128, 7176–7178; (d) H. Goto,
Y. Furusho and E. Yashima, J. Am. Chem. Soc., 2007, 129,
109–112; (e) H. Goto, Y. Furusho, K. Miwa and E. Yashima,
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tion time (the fraction (2) in Fig. S9,† M
n
9
.8 mg, 21% yield by weight) was used for the following ana-
1
lyses. H NMR (CDCl
n H), 3.36 (br s, 3n H), 3.48–3.90 (br m, 40n H), 4.18–4.26
br m, 2n H), 4.30–4.42 (br m, n H), 7.20 (br s, 2n H), 8.03 (br
s, 2n H); IR (neat) ν 3346, 2918, 2872, 1662, 1654, 1579,
3
, 300 MHz) δ 1.32 (br d, 3n H), 3.29 (br s,
3
(
1
541 cm− . The molecular weights of the fractions of the
1
polymer 2 were evaluated by analytical GPC using TOSOH
TSKgel G2000HHR and TSKgel G3000HHR columns with a
DMF solution of 0.1 M LiBr as the eluent. In this report, four
fractions from four lots (Table S1 in ESI†) were applied as a
substrate.
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Notes and references
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1
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2
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1
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4
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