Polymerization of Phenylacetylene-Based Monodendrons with Alkoxy Peripheral Groups and Oxygen/Nitrogen Permeation Behavior of Their Membranes

Table 1

Polymerization of phenylacetylene monodendrons with alkyl peripheral groups using [Rh(ndb)CL]₂^a.

Monomers	Yield (%)	𝑀w^b (×10^6)	𝑀w /𝑀n^b	𝐷𝑃^c (×10^3)
MG0PA	60	0.92	1.4	3.4
HG0PA ^d	87	2.4	1.8	5.9
DG0PA ^e	65	2.8	2.7	4.9
HG1PA	92	6.1	1.7	7.4
Hex0H ^f	49	5.3 ^g	5.2 ^g	2.6
Hex1H ^f	35	8.2 ^g	3.0 ^g	1.6

^a Triethylamine, [M]₀ = 0.5 mol/l, [M]₀/[Cat]₀ = 2500, 25°C, 3 hr, precipitated with MeOH/benzene (9/1 v/v).
^b Determined from GPC-LALLS.
^c Calculated from 𝑀_w.
^d Ether, [triethylamine]₀/[Cat]₀ = 20.
^e [M]₀/[Cat]₀ = 5000.
^f Chloroform, [M]₀/[Cat]₀ = 1000, [triethylamine]₀/[Cat]₀ = 20.
^g Determined from GPC calibrated by polystyrene standard.